EPD Filters

For prefiltering critical process liquids including water, chemicals, and solvents.

  • Ultrapure DI Water
  • Chemicals
  • Acids & Bases
  • Plating Solutions
  • Etch Baths
  • Solvents
Features and Benefits

Polypro DepthEPD is a family of filters made with pleated Polypropylene depth media.



  • Designed to meet the needs of the electronics and high-purity chemical industries
  • Provide high retention and protect downstream filters
  • Rated at 99.9% efficiency
  • Designed for high capacity and long life
  • Pore sizes: 0.10 to 100 microns
Filtration Area
EPD filtration area
For the following product information, click on the datasheet below:
  • Materials of construction
  • Flow rates for all pore sizes
  • Operating parameters
  • Sanitization and sterilization
  • Regulatory & compliance

EPD Filters

EPD Mini-Capsules

Quality Assurance

CPF filters are developed and manufactured under an ISO 9001:2015 certified Quality Management System and designed to be used in cGMP-compliant processes. 

EPD Cartridges 

Available from 5-40 inches in length with several end connections and O-ring options.  

EPD cartridge        Critical Process Filtration black and white capsule with etched logo 

EPD Capsules

These filters are EPD cartridges encapsulated in a polypropylene shell to minimize exposure to process fluids. Sizes range from 2-30 inches in length. 

EPD capsule        Critical process black and white capsule with cutout to show cartridge etched logo 

EPD Mini-Capsule

Mini-capsules are designed for lab scale testing, process development and small batch production with a filtration area of 500 cm2

EPD mini capsule     Critical Process black and white mini capsule with etched logo

Why Choose Critical Process Filters?

Quality & Performance
  • Over 20 years of engineering and manufacturing the finest filters for critical applications. 
  • Compliance with industry standards required for your operation
  • Proven success in electronics and chemical applications
  • Product optimization to meet your performance goals
  • ISO 9001:2015 certified Quality Management System
  • Appropriately rated clean room environment
Price Advantage

It's simple. Our products are very competitively priced. Learn more

Services & Support
  • Presales evaluations/recommendations by highly experienced Application Engineers 
  • Post sales support and trouble shooting
  • Testing & Analysis services (our site or yours)
  • Validation Services

Made in USA 800   90012015Large-(1)

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