Sewn End Filters

Also known as Radial Fin Filter Elements; our sewn end filters are available in standard or custom sizes with various media options.
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About Sewn End Filters

Industrial sewn end filters are an industry standard used in the most challenging applications, where chemical compatibility and temperature concerns dictate the style of the filter.

Sewn end filters are typically constructed of carbon steel. Galvanized perforated steel sheet metal is rolled to form the rugged inner core and is then welded to a steel frame or skeleton. The skeleton is made from pleated woven wire, which supports the sewn pockets or pleats of the textile media. The textile media covers the skeleton and gaskets. A second layer of wire mesh can be pleated to, or placed around the outside of the media, for more rigorous applications and backwashing environments. Stainless steel parts and high-temperature media are also available for use in aggressive environments.

A Backwash screen is one of the most common options for sewn-end filters. A backwashing screen may be needed if the application has a reverse fluid flow, where the flow direction is from the inside out. The Backwash screen is designed to extend the life of the filter element by preventing the textile media from being pushed away from the inner core. Sewn end filters use different bonding techniques depending on the media and intensity of the application.

Sewn end filters extend the life of vacuums, pneumatic controls, meters, and other pipeline equipment by trapping particulate, absorbing moisture, and preventing contaminants from progressing downstream.

Sidco’s sewn end filters effectively remove up to 98% of particulate and contaminants from air, gas, and liquids.

Sewn end filters are also known as Radial Fin Filter Elements.

Commonly Crossed Brands


  • Compressed air and gas streams.
  • Air intake filters on blowers, compressors, and pumps.
  • Inlet vacuum filters.
  • Chemical and reticulated liquid applications including lube oil, plant water, cooling systems.
  • High-temperature applications, some up to 700˚F.
  • Backwashing environments.


  • Built to OEM specifications.
  • Designed for more efficient performance than OEM replacement filters.
  • Compatible with your original equipment.
  • Textile media options are washable at the job site.
  • Sewn end filters can be factory recovered or reconditioned.
  • Constructed with domestically sourced, higher quality materials than our competitors.
  • Manufactured with heavier duty construction when compared to competitor products.


    • Media – 10µ polyester felt, 5µ polyester felt, woven polyester, rayon felt, rayon/nylon felt, woven nylon, Nylon woven mesh, wool, wool felt, woven cotton (HEC), woven cotton, terry cloth cotton, woven polypropylene, polypropylene felt, woven Dacron®, lofted Dacron®, fiberglass, woven fiberglass, Dynel®, Dynaglass®, woven virgin Teflon®, woven Teflon®, Teflon® felt, Aramid® felt, Nomex® felt, woven Nomex®, Tetratex®, Actipure carbon paper.
    • Endcap Style – Felt gaskets, fiberglass gaskets, or flanges
    • Cores – Galvanized perforated carbon steel, 304 or 316 galvanized perforated stainless steel.
    • Media Support and Backwash – Epoxy coated steel screen, galvanized wire mesh or screen, 304 or 316 stainless steel wire mesh or screen.
    • Options – Support rings for reinforcing inner core, felt or fiberglass gaskets, flanged ends, fin spacers, outer support bands or strapping, backwashing support, lift lugs, J-hooks. Upgrade all metal components to Stainless Steel to ensure optimal performance in highly corrosive environments.
    • Unique Features – Most sewn end filters can be backwashed, cleaned at the job site, or sent in for recovery. Textile medias are available from 1µ to 300µ. Some are hydrophobic or flame retardant, and a variety of Sidco’s filter media are rated to withstand temperatures up to 700˚F.

        Industries & Applications



        Electric Power


        Food & Beverage

        General Industry


        Mining & Construction

        Municipal Wastewater

        Oil & Gas


        Power Generation

        Pulp & Paper