Why Choose FiltEdge Medium Filter Cartridges?
FiltEdge provides a highly consistent fluid control solution, utilizing a 100% polypropylene hot melt process that eliminates the pore size expansion common with traditional cartridges. FiltEdge filter cartridges achieve a consistent Beta Ratio ≥ 1000, with the benefit of drift-free filtration, and each cartridge passes the Bubble Point Test for extremely stable line operation.FiltEdge filter cartridges utilize a state-of-the-art nano-fiber membrane coating that provides an effective retention rate of up to 99.99%. This extremely high primary filtration rate gives you a qualitative improvement in the purity of your finished product. Corrosion-resistant polypropylene (PP) and polyether sulfone (PES) materials are used.
What is a Medium Filter Cartridge?
The Medium Filter Cartridge is an indispensable “interceptor hub” that bridges the gap between roughing and finishing filtration, introducing a medium efficiency cartridge for those 1-50 micron particles that are large enough to wear out pumps and valves and clog expensive terminal membranes, giving you total optimization of your production line’s total cost of ownership, and saving you approximately 20% of system downtime and maintenance time by sharing the filtration stress. By sharing the stress of filtration, you save approximately 20% of system downtime and maintenance costs. FiltEdge medium-performance cartridges utilize state-of-the-art, high-density, thermally fused fiber technology, which provides a longer useful life of up to 30% longer than conventional brands and saves you up to 18% of warehousing and replacement labor costs.
Product Series
The FiltEdge Medium filter cartridges series includes the FiltEdge High-Flow Polypropylene (PP) Series, FiltEdge Absolute-Rated PES Series, FiltEdge Resin-Bonded Glass Fiber Series and FiltEdge High-Flow Polypropylene (PP) Series, Glass Fiber Series and FiltEdge Stainless Steel Pleated Series.
FiltEdge High-Flow Polypropylene (PP) SeriesDesigned for high-flow pre-filtration using a multi-layer composite melt blown process.
It can be used for industrial cooling water circulation and RO pre-treatment. Its Beta value is stabilized above 100.
FiltEdge Absolute-Rated PES SeriesAsymmetric polyether sulfone membranes with uniform microporous distribution. It can be used for advanced clarification filtration prior to terminal sterilization. This gives you the benefit of 100% fluid purity compliance. FiltEdge Resin-Bonded Glass Fiber Series . Utilizes resin-bonded glass fibers for high viscosity fluids. Can be used for paints, inks and fine chemical filtration. Provides extremely high slump pressure resistance.
FiltEdge Stainless Steel Pleated SeriesUtilizes 316L stainless steel mesh to support high temperature and chemically aggressive environments. Can be used for steam filtration and catalyst recovery. Supports multiple ultrasonic cleaning.
Key Features of FiltEdge Medium Filter Cartridges
FiltEdge Medium Filter Cartridges feature Exceptional Chemical Compatibility, hot melt construction, high precision, and high folding area de sign.

Whether it is a strong acid, alkali or organic solvent, we ensure that the cartridges will not swell, soften or degrade when in contact with corrosive media by matching the different properties of the seals (e.g. Viton, EPDM, Silicone) and filter media.

Thermally bonded construction maintains the compression ratio of the seals with an axial shrinkage of less than 1.5% in a continuous high temperature test at 82℃. The tensile strength of the filter media is maintained at over 95% after 72 hours of cyclic immersion in 10% nitric acid.

Absolute Precision cartridges can achieve β ≥ 5000 (i.e. 99.98% interception efficiency) in tests. Optimized flow path design reduces the Initial Pressure Drop, which is usually controlled between 0.01 and 0.02 MPa.

High density folded design, standard 40 inches (1016 mm) depth type cartridge surface area is usually only 0.25-0.35 square meters (EFA) to reach an amazing 0.75 – 0.95 square meters, high modulus support mesh (Rigid Support Mesh) to prevent industrial high pressure under the folding together.
FiltEdge Fully Automated Pleated Cartridge Assembly Line
FiltEdge introduces the world’s leading Fully Automated Pleated Cartridge Assembly Line that integrates the process from multi-layer media unwinding, Intelligent Pleating, to end-cap hot-melt, eliminating the instability associated with manual operation. The machine utilizes Servo-Driven Pleating Technology to tightly control fold height tolerances to ±0.05mm. Compared to traditional mechanical folding, this precision ensures that the cartridges have extremely uniform flow path gaps over their full 40-inch length, effectively preventing Pleat Pinching, a common phenomenon at high differential pressures of 0.3 MPa. The automated line produces cartridges with a 15% improvement in Effective Filtration Area (EFA) uniformity and an initial pressure drop standard deviation reduced to within 0.002 MPa. The equipment is equipped with Online Ultrasonic Cleaning & Pulse Air Blowing, which ensures that the initial cleanliness of the filter cartridges leaving the factory meets the ISO 16232 standard, with no particles left behind.


FiltEdge OEM Value Added Branding and Customized Services
Standard FiltEdge medium filter cartridges are not always a perfect fit for every complex industrial site, so FiltEdge brings you in-depth customization of all dimensional geometries and end cap styles, from product to packaging, with a full range of branding solutions. Whether it’s special, our engineering team can provide you with 100% physically compatible and precise solutions, and we can also provide you with private labeling and customized laser coding services, so that each cartridge meets your brand’s visual standards. Our one-stop OEM service provides you with strong market differentiation and a zero-barrier system installation experience, which saves you about 15% of the initial installation cost due to the replacement of Meanwhile, we have customized material certifications to meet global compliance standards, including FDA, NSF and EU Meanwhile, which saves you 25% of overseas access testing costs and customs clearance time. Customized central backbone reinforcement, using modified polypropylene, is also available. reinforcement, using modified polypropylene or stainless-steel, ensures absolute retention accuracy of 5 microns at 4.5 bar differential pressure.
Why Choose FiltEdge as Your Medium Filter Cartridges Supplier?


FiltEdge has been present at the Amsterdam Water Show, the American Water Quality Association Show, and the Shanghai International Water Show. We have been focusing on the research and development of high-performance medium filter cartridges for more than 20 years, and as a professional industrial grade supplier in the filtration field, we have a modern production base of 4,000 square meters, 6 fully automated production lines, and 120 professional technicians. All of our products have passed ISO 9001 quality management system certification and strictly comply with international health and safety standards such as FDA, RoHS, etc.
Applications of FiltEdge Medium Filter Cartridges
FiltEdge Medium Filter Cartridges are used in wastewater treatment and water reclamation, petrochemical, biopharmaceutical clarification processes, and automotive painting and surface treatment.

Effectively intercepts colloids, suspended particles and organic contaminants. Capable of handling high Total Suspended Solids (TSS) levels in influent water, reducing the SDI to less than 3.

FiltEdge’s Medium Filter Cartridges are used in amine desulfurization, product clarification, and water injection operations. Our cartridges feature a reinforced support core that can withstand up to 4.5 bar of differential pressure without deformation.

FiltEdge’s Medium Filter Cartridges are commonly used for pre-clarification of fermentation broths and decolorization of culture media. The cartridges are strictly controlled for endotoxin content and fiber shedding. High throughput design reduces single cycle filtration time by 25%.

Filters gels and dust from paint circulation systems. Silicone-free process improves bodywork pass rate by 12% in a single pass.
Technical Specification
- Technical Specification
| Micron Ratings | 1, 3, 5, 10, 20 (micron) |
| Beta Ratio | β ≥5000 |
| Media | PP, Nylon 66, or PES |
| Support | PP Mesh / High-Density Polyethylene |
| O-rings | EPDM, Viton, Silicone, PFA Encapsulated Viton |
| EFA | ≥ 0.75 ㎡ per cartridge |
Testimonials
Typically ranging from 1 micron to 20 microns, selection requires a balance between Beta Ratio and Pressure Drop. It is recommended that the selection be based on fluid viscosity and target contaminant particle size.
Depth cartridges (e.g., meltblown or wire-wound) utilize a gradient of pore sizes within the filter media to capture contaminants, resulting in a higher Dirt Holding Capacity; Depth filtration acts like a “sponge” and is suitable for fluids with a wide radial distribution of particles.
It is recommended to keep the initial pressure drop below 0.02MPa. When the Differential Pressure reaches 0.15-0.2MPa (or 25 – 30 psi), it indicates that trapped particles have clogged the internal pores of the filter layer, and the cartridge must be replaced to prevent structural damage to the cartridge or bypass leakage.











