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Copyright © 2017
Midwest Filter, LLC

 
Midwest Filter Corporation

Filter Cartridges

Filter Cartridges

Unlike conventional string wound cartridges (right insert), our true graded density Polymicro™ cartridges (left insert) offer maximum dirt-holding capacity for longer filter life.

These polypropylene micro fiber cartridges are available in standard and custom lengths and diameters with ratings from 1 to 100 microns. Sealing options include standard DOE, DOE w/gaskets, SOE-222, and SOE-226.

We also offer a full line of Polywound  conventional string wound cartridges in a variety of materials. Polywound cartridges are available with core materials of polypropylene, tinned steel, 304 stainless steel, or 316 stainless steel.

Standard Cartridge Micron Ratings and Materials
Material 1 3 5 10 25 50 75 100 125 150
Polypropylene Polywound dot dot dot dot dot dot dot dot dot dot
Polyester Polywound dot dot dot dot dot dot dot dot dot dot
Bleached Cotton Polywound dot dot dot dot dot dot dot dot dot dot
Glass Polywound dot dot dot dot dot dot dot dot dot dot
Nylon Polywound dot dot dot dot dot dot dot dot dot dot
Polypropylene Polymicro dot dot dot dot dot dot dot dot    
Polypropylene Polymicro Glazed Finish dot dot dot dot dot dot dot dot    
Standard Cartridge Lengths*
Length 6" 9¾" 10" 19½" 20 29¼" 30" 39" 40"
Polywound dot dot dot dot dot dot dot dot dot
Polymicro   dot dot dot dot dot dot   dot
Standard cartridges have a 2½" outer diameter. We can supply non-standard lengths and diameters.