FiltEdge chooses the cutting-edge folded membrane encapsulation process, the effective filtration area of the cartridge is 25% higher than similar products, doubling the capacity of a single cartridge, the use of non-adhesive heat fusion welding technology to eliminate secondary contamination, and the structural integrity of the cartridge under 85°C high temperature environment. Unique asymmetric design ensures high flow rates with high dirt-holding capacity and low pressure differentials in the filtration system FiltEdge offers a standardized product offering, but is better at providing customized media ratios for specific fluids, which can be tailored to your needs, saving you up to 18% of the initial design development costs by reducing over- or under-filtration. Reinforced PP support frame with compressive strength up to 0.42 MPa.
What Is a Water Purification Cartridge?
Water purification cartridge is different from traditional sand filtration or roughing filtration. It is mainly used to remove microscopic particles, bacteria and impurities from water through precision microporous membrane technology to realize deep retention. It is more precise than bag filtration and more flexible than ultrafiltration systems. This gives you more flexibility in system configuration and saves you 25% of the initial equipment investment by optimizing the number of filter stages.FiltEdge cartridges stand out for their unique dual mechanism of “charge retention + physical interception”, which is highly effective in removing microscopic colloids and pyrogens. The proprietary “Progressive Density Structure” provides graded retention from the outside to the inside.
FiltEdge Water Purification Cartridges Series
FiltEdge water purification cartridges series includes FiltEdge PP meltblown cartridges, FiltEdge PES cartridges, FiltEdge High-Flow cartridges and FiltEdge activated carbon cartridges.
Class 3E multi-axis automatic meltblown process, forming a gradient pore size with a sparse exterior and a dense interior. With 99% absolute retention rate (5μm level), it can effectively intercept rust, sediment and suspended solids, and extend the replacement cycle by 30%.
Designed for biopharmaceutical, food sterilization and ultrapure water terminals, the FiltEdge PES cartridge uses highly asymmetric PES membranes with ultra-low protein adsorption characteristics. A single 30-inch cartridge has an effective filtration area of up to 2.1 square meters.
FiltEdge High-Flow Filter Cartridges are suitable for high-flow filtration such as seawater desalination, power plant condensate treatment, etc. The 6-inch large-diameter structure, with a flow rate of up to 70-110 m³/h per cartridge, saves 30% of the initial investment in pumps, valves and piping costs.
Mainly used to remove residual chlorine, organic matter and odor from industrial water, protect the back-end ion exchange resin and RO membrane, high iodine value coconut shell activated carbon, the pressure drop is lower than 0.05 MPa, extend the life of the RO membrane by 2 times.
Key Features of FiltEdge Water Purification Cartridges
FiltEdge Water Purification Cartridges offer broad chemical compatibility, are 100% integrity tested, have a high efficiency filtration folded area process and are pre-cleaned for high purity.

FiltEdge water purification cartridges are designed to withstand the challenges of strong acids and bases ranging from pH 1 to pH 14, and can be operated in hot water up to 85-95°C without distortion.

FiltEdge water purification cartridges are 100% Bubble Point or Diffusion Flow tested before shipment, providing 100% filtration safety.

FiltEdge compresses several times the membrane area of conventional cartridges into a standard 10-inch space, without the use of any adhesives or surfactants.

Request manufacturing-environment and extractables documentation for the selected cartridge. The stated TOC value below 5 ppb after 50 liters of rinsing requires product-specific test confirmation; cleanroom certification is not assumed.
FiltEdge Water Purification Cartridge Precision Manufacturing & Assembly Process
Confirm the selected cartridge media, welding or bonding construction and inspection plan before ordering. Manufacturing-environment records, integrity tests and flow tests must be reviewed for the specific product. The stated differential-pressure condition of 0.5 MPa requires confirmation for the approved construction.


FiltEdge OEM Value Added Branding and Customized Services
FiltEdge can review cartridge dimensions, end-cap styles, private labeling and packaging requirements against your equipment and brand specifications. Confirm compatibility through the approved drawing before ordering. Available material documentation and any third-party testing must be agreed for the selected product and market; certification or cost savings are not guaranteed.
Modified polypropylene or stainless-steel center-support options require application-specific review. The stated 5 micron rating and 4.5 bar differential-pressure condition require confirmation for the selected construction.
Why Choose FiltEdge as Your Water Purification Cartridges Supplier?


FiltEdge LLC is a U.S. company established in 2025, supported by SFFILTECH in China, established in 2006. Manufacturing support is provided through SFFILTECH in China. Confirm product specifications, available quality documents, pricing and delivery in the quotation. Certificates must be checked for the relevant entity, facility and product. Support is arranged during business hours; any on-site service or warranty terms require separate agreement.
Applications of FiltEdge Water Purification Cartridges
FiltEdge Water Purification Cartridges are used in the Biopharmaceutical Industry, Food & Beverage Industry, Semiconductor Manufacturing Industry, and Power Generation & Heavy Industry.

For pharmaceutical water applications, review PES cartridge retention, extractables and process-validation data. The stated 18.2 MΩ-cm water condition does not establish cartridge suitability or GMP/FDA compliance; confirm requirements for the specific process.

For bottled water, beer, dairy or beverage applications, confirm food-contact documentation and product-specific retention performance. Pathogen-removal claims require validated test data for the selected cartridge and operating conditions.
FiltEdge’s high-cleanliness cartridges provide a dramatic increase in yield rate, saving more than 30% in lost production line costs, and specialize in the interception of nanoscale particles (≥0.05 micron) and metal cations with very low TOC (Total Organic Carbon) precipitation.

Large 6-inch throughput design capable of handling hundreds of cubic meters per hour, saving approximately 18% on O&M costs and extending back-end RO membrane life by 1x.
Technical Specification
- Technical Specification
| materials | PES/PP/PTFE |
| Micron ratings | 0.1μm, 0.22μm, 0.45μm, 1μm 3μm, 5μm, 10μm, 25μm, 50μm, 100μm |
| Filtration area | ≥0.65 ㎡ |
| Operating conditions | 0.42 MPa (61 psi) @ 25°C 0.21 MPa (30 psi) @ 25°C85°C (185°F) @ 0.15 MPa |
| Length | 10″, 20″, 30″, 40″ |
| Compliance & Safety | FDA 21 CFR standard |
Testimonials
Because our water purification cartridges utilize gradient pore size technology, the outer layer captures large particles and the inner layer filters out 45% more dirt, and the high-strength support skeleton is able to withstand frequent pressure pulsations.
Request applicable food-contact documentation and any NSF certification details for the exact cartridge model. Certification scope and testing costs must be confirmed; no fixed compliance-cost saving is guaranteed.
Yes, water purification cartridges are available in both standard and high flow sizes, and their superior flow rate performance saves you 15% on power costs per unit of water production compared to similar products.















