Your Most Trustworthy UF Filters Manufacturer
- ISO 9001 Quality Management System Certification
- Professional design and installation team
- Powerful technology-based onR&D
- High sterilization rate of 99.4%
- Free consulting service
NEWater: UF Filter No.1 Manufacturer in China
NEWater is the leading manufacturer and supplier of UF filters. We are an expert in handling a wide range of UF filter. With advanced manufacturing and processing equipment, we can manufacture a high-end and superior UF filter and another water filtration. NEWater is a reputable company that provides a reliable and trusted UF filter. We can give you a better ultrafiltration filter solution that can support your project requirements.
NEWater Brings for YouDiverse Ultrafiltration Filters
UF water system we design comes with a sheet membrane to eradicate all suspended solids from water. Further, it uses advanced RO technology to make water free of contaminants and pathogens.
These purifiers use hydrostatic pressure to push water against a semipermeable membrane for purification.
These UF filter tanks come with different storage capacities. We maintain quality of the highest standard in every manufacturing process of our UF filter tanks.
We manufacture industrial sand filters that push the water from the top of the water tank to the bottom through the sand with high pressure.
We offer turnkey and customized industrial water filter solutions for various industries. These use reverse and upward water flow with various filters to create high pressure for water purification.
Our reverse osmosis membrane filters come with tiny pores that restrict the contaminants and allow the water to flow through. All contaminants and toxins are removed from unfiltered water.
Your High-quality UF Filter Supplier in China
NEWater is an experienced manufacturer and supplier of professional ultrafiltration filters. With 20 years of industry experience, we have a professional R&D team. We can design and manufacture filters that meet various industry standards and meet different water purification requirements.
Our UF filters follow a micro-level ultrafiltration process along with reverse osmosis technology for the complete purification of water. Besides, each filter is made using a high-end manufacturing process to avoid any defects and problems.
How NEWater Ultrafiltration Filter Works
In our system, the Hydrostatic pressure pushes through various membrane filtrations in ultrafiltration systems. Solvents pass through an extremely thin membrane and keep big suspended particles and solids out while allowing water and solutes with a lower molecular weight to pass through. This separation procedure is used in industry and research to purify and concentrate macromolecular (103-106 Da) solutions, which are typically protein solutions.
Ultrafiltration systems eliminate the need for clarifiers and other filtration devices to meet stringent discharge requirements. Filters for many media sources. Membranes that can be immersed are used in effective ultrafiltration systems. Air-scoured and back-flushable. Spiral wound UF/MF membranes function exceptionally well for the clarification of waste and process water
NEWater UF Filter Product Details
With our system, it is an asymmetric semi-permeable membrane produced of a high molecular chemical substance by special technology. It has a hollow capillary tube (or hollow fiber) form, with a thick micro-pore covering the tube wall.
Under the influence of pressure, feed liquid flows in or out of the membrane, allowing dissolvents or small molecules to pass through and be collected as pure liquid, while large molecules (proteins, enzymes, nucleic acids, polysaccharides, and so on), colloid particles (such as emulsions, micro-ions), and bacteria are cut off by the membrane and carried away by the circulating liquid flow to become concentrating liquid. That is the separation procedure.
NEWater UF Filter Features
- Extreme backwash conditions are possible due to superior fiber strength and double-potting.
- Solvay PVDF and TIPS membrane tolerate pH 1-13 and 5,000 ppm NaClO, ensuring good flux recovery and long service life.
- Isotropic microporous fibers remove particles, colloids, bacteria, and viruses effectively, protecting downstream equipment.
- Permeability is ensured by proprietary permanent hydrophilic-modified fibers.
- VDF hollow fibers with an outside-in design accept a wider variety of feed water quality.Many ultrafiltration systems can benefit from the moderate membrane area and compact construction.
NEWater Mission：Bring New Life for Water
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NEWater has an independent large-scale production workshop, which is convenient for the control and supervision of product production quality. Strictly abide by production standards and provide detailed guarantees for all projects.
NEWater establishes SOP standardized operation process and strictly implements the work process. The professional project installation team, implement 5S on-site management. Equipped with standard safety facilities, investigating access conditions, and short construction time.
The safe transportation process does not have to worry about product damage and extends the construction period. NEWater has provided system equipment to thousands of companies around the world, which guarantees absolute product transportation.
NEWater UF Filters
NEWater is an experienced and popular UF filter manufacturer. Due to our great products, we pass the quality management system certification ISO9001. We can guarantee a UF filter product quality. We absolutely provide better products and quality services. NEWater is your one-stop solution for all kinds of UF filter needs.
The NEWater UF filter works without electricity and completely removes all microorganisms from water including the smallest of viruses. This is a perfect water purifier for tap water in big cities, where you can be sure that you will always get good and safe water without chemical contamination.
The NEWater UF filter has a great capacity to remove from water even the smallest of germs, the viruses. NEWater UF filters can eliminate the germs in the water, their bodies will still remain in the water, whereas in UF Filters all germs and viruses are physically killed from the water.
The NEWater UF filter does not need annual maintenance. This is cost-effective and provides simple uses. NEWater can offer an effective NEWater UF filter at friendly rates yet high-quality. NEWater is a professional manufacturer and supplier of superior UF filters.
We are the most reliable UF filter partner that will support your needs and we are capable to design and manufacture your ultrafiltration filter desired. We have a wide selection of UF filters that can meet various industry standards.
We have highly skilled and knowledgeable workers that can design a desirable UF filter. We are the most popular manufacturing company that has a dull capability to manufacture a high-end and unique ultrafiltration filter.
NEWater is the perfect place for those seeking of UF filter that is easy to maintain and easy to use. We always make sure that every angle of the manufacturing process of our UF filter is solid to prevent any product defects and problems.
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The Ultimate FAQ Guide to Ultrafiltration Filters (UF).
Water treatment systems have undergone a significant metamorphosis in recent years to gratify the steadily increasing demand for treated product water. Presently, the reliance on water treatment is at its highest owing to the alarming depreciation of freshwater reservoirs. Ultrafiltration technology has particularly played an immense role in remedying global water scarcity. Underneath, we elaborate on contemporary ultrafiltration filters and their application in water treatment projects.
- What is Ultrafiltration?
- What is an Ultrafiltration Filter?
- What are the Basic Features of Ultrafiltration Filters?
- What is the Working Principle of Ultrafiltration Filters?
- What are the Advantages of Ultrafiltration Filters?
- What are the Common Application Fields of Ultrafiltration Filters?
- Which Impurities are Eliminated by Ultrafiltration Filters?
- How Much Does an Ultrafiltration Filter Cost?
- What Factors Should I Consider When Buying an Ultrafiltration Filter?
- What is the Contaminant Rejection Score of Ultrafiltration Filters?
- Can Ultrafiltration Filters be Incorporated into Reverse Osmosis Systems?
- What is the Average Capacity of Ultrafiltration Systems?
- What is the Size of Ultrafiltration Membranes?
- What are the Limitations of Ultrafiltration Filters?
- What Differentiates an Ultrafiltration Filter From a Multimedia Filter?
- Do You Deliver Ultrafiltration Filters Abroad?
- How are Ultrafiltration Filters Cleaned?
- Where Should I Buy my Ultrafiltration Filter?
- Can You Customize my Ultrafiltration Filter?
- Which Sources of Water are Treated by Ultrafiltration Filters?
- How are Ultrafiltration Filters Used in Wastewater Treatment?
- What is the Difference Between Ultrafiltration Filters and Ultraviolet Sterilizers?
- Are Ultrafiltration Filters Applicable in Home Water Treatment?
- Do You Provide Industrial Ultrafiltration Filters?
- Do You Provide Commercial Ultrafiltration Filters?
- Which Post-Treatment Technologies can be Used in Ultrafiltration Filters?
- What is the Lifespan of Ultrafiltration Filters?
- Which After-Sale Services do You Offer on Ultrafiltration Filters?
- Do You Help Install Ultrafiltration Systems?
- Do You Manufacture Other Water Filtration Equipment?
➣What is Ultrafiltration?
Ultrafiltration is technically a water treatment technology that is driven by pressure to alienate suspended solids and solutes with high molecular weights from water using a semi-permeable membrane. Customarily, solutes with low molecular weight and uncontaminated water are collected on the other side of the membrane (permeate side) while the alienated suspended constituents are retained on the retentate side.
The utilization of ultrafiltration water treatment practically commenced in the early 1960s. However, the technology has incredibly transformed to present modern ultrafiltration processes that are highly versatile and highly proficient (90-100% removal rates).
➣What is an Ultrafiltration Filter?
An ultrafiltration filter is ideally a low-pressure membrane filter highly proficient in eliminating water turbidity, suspended matter, proteins, bacteria, and colloids. Typically, ultrafiltration filters rely on size-based exclusion to alienate solutes with conventionally high molecular weights from low molecular solutes.
For optimum water treatment, the filtrate generated by ultrafiltration filters is customarily polished using supplementary technologies like reverse osmosis. Nonetheless, ultrafiltration filters are efficient treatment solutions applicable in home, industrial, and commercial water treatment endeavors.
➣What are the Basic Features of Ultrafiltration Filters?
In a number of ways, ultrafiltration filters are quite similar to reverse osmosis filtration systems. They are however not entirely similar with their variations being primarily exhibited in the alienated contaminants. The primary distinguishing feature of ultrafiltration filters is their reliance on hydrostatic pressure in removing suspended solids from water.
Customarily, ultrafiltration filters use membrane separation to capture and eradicate macromolecular solutions of 103-106 Daltons. The membranes utilized are primarily spiral wounds with perforations ranging from 0.01 to 0.10 microns. Furthermore, they support distinct capacity ranges, which makes them suitable for domestic and industrial applications.
➣What is the Working Principle of Ultrafiltration Filters?
Ultrafiltration filters characteristically separate contaminants from water using low pressure to force water through perforated ultrafiltration membranes. Their separation process is typically based on size, whereby high molecular solids are retained while low molecular solutes gain access to the permeate side of the membrane.
Hydrostatic pressure is exerted to force the feed water through the microscopic pores in the ultrafiltration membranes. The pores are the main barriers that retain suspended solids, proteins, and microorganisms larger than 0.01 to 0.10 microns.
They are extensively deployed in conjunction with other water treatment systems for elevated product water quality. Their separation principle is mainly physical and they rarely necessitate the use of chemicals.
➣What are the Advantages of Ultrafiltration Filters?
Owing to their exemplary filtration rates, ultrafiltration filters have gradually replaced traditional water filters. It is projected that ultrafiltration filters are up to 250 times more effective and efficient than traditional water filtration systems. Their versatility permits their application in diverse industries and they are comparably affordable. Beneath, we list the common rewards reaped by users of ultrafiltration filters.
- They have comparably high removal rates (90-100% for certain pollutants).
- The process of ultrafiltration does not oblige the use of chemicals (apart from cleaning).
- They guarantee a high-quality permeate irrespective of the feed water source.
- They are environmentally friendly.
➣What are the Common Application Fields of Ultrafiltration Filters?
As water contamination and the simultaneous depreciation of freshwater reservoirs starve off industries’ and households’ freshwater, the demand for water filtration systems like UF filters balloons exponentially. Ultrafiltration filters characteristically treat feed water from varying sources and this diversifies their application fields.
Moreover, their application can be as standalone systems, pretreatment units, or tertiary treatment systems. Underneath is a list of industries that have for years exploited ultrafiltration to supplement their product water supply.
- Industrial wastewater treatment.
- Food and beverage industries.
- Paper pulp mills.
- Pretreatment of seawater desalination systems.
➣Which Impurities are Eliminated by Ultrafiltration Filters?
As feedwater trickles down the lumen or shell of the UF membrane hollow fibers, a huge chunk of the suspended solids and virtually all high molecular weight solutes are captured. Ultrafiltration filters also proficiently eradicate macromolecules thanks to their microscopic perforation sizes.
They owe their universal adoption to their consistently high filtration scores irrespective of the feed water quality. Below is a list of objectionable impurities eliminated from water by ultrafiltration filters.
●Viruses, bacteria, and pyrogens.
●Endotoxins, plastic, and silica.
●Colloids, debris, and silt.
➣How Much Does an Ultrafiltration Filter Cost?
Generation of product water using ultrafiltration filters is comparatively inexpensive thanks to their reliance on low pressure, unlike other membrane filtration systems. Nonetheless, it is a costly expedition that commands equipment purchase and varying production costs. Typically, the cost of ultrafiltration filters is a reflection of the filter’s respective specifications such as size and functional prowess.
The operational cost covers all the expenditures accrued from acquiring varying resources that facilitate the filtration of raw water. Often, the cost of operating an ultrafiltration filter accrues from labor, installation, maintenance, and depreciation value. Past and present studies indicate that the cumulative cost of generating potable water using ultrafiltration processes is roughly $0.235/m3.
➣What Factors Should I Consider When Buying an Ultrafiltration Filter?
Although ultrafiltration systems are typically simple water treatment units, purchasing them is considered a complex affair. Having prior information on the varying types of ultrafiltration filters and their suitability for distinct applications is extremely paramount. Here is a summary of essential considerations that will guide you in purchasing a befitting UF filter system for your project.
Different raw water sources harbor distinct pollutants at varying concentrations. Therein, you need to understand your raw water composition to establish the most suitable treatment solution.
Desired permeate quality.
Every industry demands a certain level of water purity and distinct combinations of water treatment systems deliver varying qualities of product water. You should notify the manufacturer of your intended water quality to ensure your UF filter is the perfect fit for your application.
Additionally, you need to consider the compliance regulations within your industry, the financial aspects, design, and operational modules.
➣What is the Contaminant Rejection Score of Ultrafiltration Filters?
Customarily, the impeccable filtration scores of ultrafiltration filters transcend numerous sources of raw water. Their stronghold is primarily their 90-99% removal of suspended solids, arsenic, and typically high-molecular-weight solutes.
Their rejection scores are however hinged on the type of pollutants harbored in the raw water. Presently, the filtration score of ultrafiltration systems is graded using the molecular weight cut-off principle (MWC). UF filter systems will customarily retain 90% of the macromolecular solutes.
➣Can Ultrafiltration Filters be Incorporated into Reverse Osmosis Systems?
Ultrafiltration filter systems are considered the most efficient pretreatment systems for reverse osmosis systems. RO systems are characteristically suited to eliminate dissolved solids and the presence of suspended solids, colloids, debris, and particulates in the feed water threatens the well-being of the RO membranes.
Therein, ultrafiltration filters are commonly incorporated into seawater, brackish water, and well water reverse osmosis to specifically eradicate the suspended solids. Additionally, they eliminate water-hardness minerals (calcium and magnesium) hence averting the possible corrosion of RO equipment.
➣What is the Average Capacity of Ultrafiltration Systems?
The application scales of ultrafiltration systems range from domestic applications to enormous industrial applications. As such, varying capacity ranges are necessitated to efficiently satisfy the varying application scales.
Ordinarily, ultrafiltration filter systems are available in daily capacities ranging from 2.3M3/hr to 4000M3.hr. NEWater understands that the standard options do not cater to all your demands hence we manufacture higher and lower capacity UF filter systems as personalized orders.
➣What is the Size of Ultrafiltration Membranes?
The primary distinguishing factor between the varying membrane filters (RO, UF, MF, and NF) is the membrane pore size. Characteristically, the perforations in ultrafiltration membranes measure 0.01 to 0.10 microns.
Their alienation process is founded on size expulsion and typically, UF membrane filters tend to retain macromolecules weighing 103-106 Daltons. Reverse osmosis membranes on the other hand have characteristically smaller perforations hence they are more suited to filtering out dissolved solids.
➣What are the Limitations of Ultrafiltration Filters?
Ultrafiltration filters are generally highly beneficial technologies aiding millions of people and numerous industries to access high-grade product water. They are nonetheless imperfect just like all things in life. Their primary limitation lies in their inability to eradicate dissolved solids from raw water. Consequently, they cannot be utilized to desalt brackish water and seawater.
In addition, ultrafiltration filter membranes allow low molecular weight solutes to pass to the permeate side. This means they are incapable of alienating solutes and molecules with conventionally low molecular weights. They are however environmentally friendly because they rarely utilize chemicals.
➣What Differentiates an Ultrafiltration Filter From a Multimedia Filter?
Ultrafiltration filters are typically membrane filters dependent on hydrostatic pressure to filter water. Multimedia filters on the flip side, are conventional filtration systems comprising several layers of filtration media (often anthracite, gravel, and sand). They chiefly operate by utilizing the process of adsorption whereas ultrafiltration filters deploy the process of size expulsion.
Ultrafiltration filter systems are by far the more efficient water filtration solution compared to multimedia filters. Moreover, they do not necessitate the use of chemical reagents whereas multimedia filters oblige coagulation and flocculation.
➣Do You Deliver Ultrafiltration Filters Abroad?
Yes. The demand for NEWater’s ultrafiltration filter systems transcends numerous countries and NEWater’s mission is to sufficiently gratify this demand. We have a global delivery service that makes your shopping experience convenient given we deliver your UF filter to your doorstep. The diversity in transportation modes permits us to deliver our water treatment systems to virtually all parts of the globe.
Customarily, NEWater uses either road, railway, sea, air transport, or combinations of several modes to ship your UF filter. Although it is hard to approximate the actual delivery duration, our turnaround time on average is 3-7 days and 2-3 months for enormous UF filter systems.
➣How are Ultrafiltration Filters Cleaned?
The impurities alienated from water by the ultrafiltration filter membrane over time accumulate on the filter’s surface. This mandates periodic UF filter cleaning in order to sustain its high productivity rate. Primarily, chemical cleaning is utilized but there are alternative cleaning mechanisms like Physico-chemical cleaning.
Cleaning is essentially done using backwashing, and forward and reverse flushing. Sodium hypochlorite is a chemical reagent commonly utilized in UF membrane filter cleaning although hydrogen peroxide is widely preferred due to its eco-friendliness. For easier cleaning, you can opt for a membrane cleaning skid.
➣Where Should I Buy my Ultrafiltration Filter?
For the past 2 decades, NEWater has worked with thousands of clients across the globe aiding them to gratify their demand for potable water. We manufacture high-end ultrafiltration systems accommodative of small-scale and large-scale commercial and industrial applications. Our reliability is proven by our ISO 9001 quality management system certification.
Our standard and customized ultrafiltration filters are constructed using first-rate components and incorporate the latest technologies. We have the market’s best prices and we offer varying after-sale services. You only need to place your order and we will deliver it to your selected location punctually and in perfect condition.
➣Can You Customize my Ultrafiltration Filter?
Our diverse customer base has different tastes and their distinct potable water applications oblige specialized ultrafiltration filters. To this effect, we consent to custom orders on ultrafiltration filter systems. For our engineers to accurately incorporate your specific requirements into your UF filter system, we ask for the following data.
- The type of feed water e.g. surface water or wastewater.
- The intended quality of potable water.
- The desired flow rate e.g. 20GPM.
- Regulation requirements.
Our production processes incorporate 3D computer modeling, which is an impeccable design tool. We also engage the client throughout the production phase and our prices are considerably inexpensive.
➣Which Sources of Water are Treated by Ultrafiltration Filters?
The biggest advantage of ultrafiltration filters is compounded by their innate ability to effectively filter varying forms of feed water while depicting high removal rates. They are customarily used in comprehensive water treatment projects as a standalone solution as well as complementary solutions.
In hybrid seawater desalination systems, ultrafiltration systems act as pretreatment units. They will essentially remove suspended solids, proteins, and high molecular weight solutes from the following sources of feed water.
- Well water.
- River water.
- Seawater and brackish water.
➣How are Ultrafiltration Filters Used in Wastewater Treatment?
Ultrafiltration filters are primarily tertiary wastewater treatment systems that supplement secondary systems to provide high-grade potable water viable for reuse applications. The application of ultrafiltration systems in wastewater treatment bonds well with the need for energy conservation.
By eradicating the suspended solids from wastewater, UF filters facilitate further improvement of the water through processes like reverse osmosis. NEWater provides wastewater UF filters capable of generating effluent that meets the prevailing wastewater regulations. They are largely used by municipalities and industries to treat sewage water consequently providing high-grade water for cooling systems and irrigation.
➣What is the Difference Between Ultrafiltration Filters and Ultraviolet Sterilizers?
Ultrafiltration filters and ultraviolet water sterilizers are commonly but distinctively utilized to eradicate microbial pathogens from water. They however vary significantly given that UF filters are primarily endowed to eliminate suspended solids while UV sterilizers specifically eradicate up to 99.9% of biological microorganisms.
Comparatively, UV water sterilizers are by far more proficient in eliminating bacteria, viruses, and other disease-causing protozoans. They achieve this by using germicidal radiation whereas UF filters alienate the microorganisms using the miniature membrane pores. Their difference is also visually evident.
➣Are Ultrafiltration Filters Applicable in Home Water Treatment?
The number of households with limited access to freshwater continues to grow annually. This has consequently sparked a demand for economical water treatment systems. Ultrafiltration filter systems are customarily utilized to treat well water, river water, and tap water ultimately supplying homes, small businesses, and hotels with high-quality product water.
NEWater particularly provides low-capacity UF systems with service flow rates ranging from 2.2M3/hr. Our home UF filters are primarily portable, easy to install, and unsophisticated to operate. They extensively eradicate water hardness, suspended matter, colloids, and microorganisms from water. This consequently results in high-grade product water suitable for drinking as well as other utility applications.
➣Do You Provide Industrial Ultrafiltration Filters?
The application scopes of ultrafiltration filters in industries are diverse ranging from process water treatment to industrial wastewater treatment. As an enterprising manufacturer, NEWater manufactures industrial UF filters applicable in tertiary wastewater treatment and the generation of product water. Our industrial UF systems support distinct capacities and are available in skid-mounted and modular designs.
Furthermore, we provide ultrafiltration skids that are primarily incorporated into industrial water treatment systems to pretreat raw water for the RO process. Our UF filters are currently in use in the pharmaceutical, food processing, mining, and manufacturing industries. We also manufacture standard and customized versions of ultrafiltration filters.
➣Do You Provide Commercial Ultrafiltration Filters?
The integration of ultrafiltration filters in commercial water treatment applications is undertaken in varying ways. Commercial UF filters primarily function using low pressure that forces raw water through UF membrane filters. Subsequently, undesired contaminants such as proteins, lead, arsenic, microorganisms, and mainly suspended solids are eliminated.
The commercial application of ultrafiltration filters varies from drinking water production to the generation of hospital water. NEWater manufactures an extensive array of commercial UF filters that are highly durable and versatile. Their low operational costs favor commercial applications given that they facilitate quick returns on investment.
➣Which Post-Treatment Technologies can be Used in Ultrafiltration Filters?
The perforations in ultrafiltration membrane filters permit low molecular weight solutes to pass together with the water. This calls for an additional process to polish the UF permeate especially if the end product is destined for sophisticated applications. In saline water desalination, UF filtration systems are employed to remove the suspended particles.
In wastewater treatment, the permeate from ultrafiltration filters is subsequently refined using reverse osmosis and electrodeionization. Electrodeionization is particularly used to eradicate dissolved gasses and ionic impurities. Post-treatment of UF permeate facilitates the production of ultra-pure water.
➣What is the Lifespan of Ultrafiltration Filters?
Ultrafiltration filters tend to exhibit distinct lifespans but their life expectancy is generally long. Their service life is essentially adequate and consistently top-notch. On average, an ultrafiltration system will provide first-rate services for 15-20 years. The UF membranes are equally durable but necessitate periodic changing. The durability of ultrafiltration filters ultimately results in lower operational expenditures since the need for repairs and replacements is minimized.
➣Which After-Sale Services do You Offer on Ultrafiltration Filters?
NEWater’s relationship with ultrafiltration filter buyers goes beyond the purchasing process. We extend our hand of appreciation by offering our customers exclusively designed post-sale services. Every purchase is entitled to one-year warranty protection and upon expiry, we provide lifetime repair services. Beneath are additional after-sale services, NEWater promises to offer on our water treatment systems.
- Worldwide delivery services.
- 24/7 customer support.
- Free Consultations.
- Installation assistance.
➣Do You Help Install Ultrafiltration Systems?
As a caring provider of water treatment systems, we offer installation assistance in numerous ways. Essentially, we design our systems to facilitate plug-and-play installation, which eliminates the need for professional installation.
Additionally, we provide installation manuals with graphic aids to make the installation process easier. We, however, dispatch our team of specialists to provide on-site installation in scenarios involving enormous water treatment systems.
➣Do You Manufacture Other Water Filtration Equipment?
NEWater’s operational scope transcends various water treatment systems. We specialize in the production of comprehensive water filtration equipment for industrial, personal and commercial projects.
Our first-rate production facility is based in China and we have the most qualified personnel within our ranks. The range of our water filtration systems accommodates small-sized, medium, and large-scale potable water applications. Here are our most popular water filtration systems.
- Reverse osmosis filtration systems.
- Nanofiltration filter systems.
- Portable water filtration systems.
- Saltwater filter systems.