The WB-HB-20-20W Harmsco pleated filter cartridge is sized 20 x 4.5-inches and is ideal for use in commercial applications requiring the reduction of rust, sediment, and silt. WaterBetter Polyester-Plus filter media reduces contaminants as small as 20 micron while delivering flow rates up to 20 gallons per minute. This filter's pleated design allows for much more surface contact area between the filter media and the water it treats when compared to other similarly sized styles of filters. Order the WB-HB-20-20W Harmsco Pleated Commercial Water Filter Cartridge today!