Check the listing for details. Watts WPC50FF20 50 Micron Pleated 20" x 4.5" Water Filter. Condition: New. Listed at 42.95 USD. Watts WPC50FF20 50 Micron Pleated 20" x 4.5" Water Filter The Watts 50 Micron Pleated 20" Filter Cartridge (Watts WPC50FF20) is a 20"L x 4 1/2"D pleated water filter replacement cartridge used primarily in whole house water filter systems to reduce sediment as well as many contaminants such as dirt, turbidity, limescale, rust, sand, silt, and other common particulates and impurities. This Watts pleated water filter uses advanced synthetic pleated polyester filtration technology for a larger filter surface area, longer cartridge life, higher flow rate, greater dirt holding capacity, lower pressure drop, and more efficient sediment filtration when compared to other sediment filters which use different types of filter media such as resin, melt blown, spun, string wound, etc. The 100% synthetic cellulose-free pleated polyester media does not contain binders or additives. Because it is a Full Flow filter with a large diameter (4.5"), it features higher flow rates than standard diameter (2.5") filters. Watts 20" Pleated Sediment Water Filter Specifications (WPC50FF20): Micron Rating: 50 Micron Filter Life: Approx. 6 months Temperature Range: 40 - 140 F Max. Operating Pressure: 40 PSID Recommended Change Out: 25 PSID Dimensions: 20"L x 4 1/2"OD (Full Flow) Filter Media: Cellulose-free synthetic pleated polyester Max. Flow Rate: About 25 gallons per minute (25 GPM), though it varies according to the specific filter system used This Watts pleated filter is a compatible replacement sediment filter cartridge for similar pleated sediment filter brands of all types including Pentek filters, Ametek filters, Culligan filters, Whirlpool filters, US Filter filters, Ace filters, American Plumber filters, Bruner filters, Plymouth filters, Pentair filters, and other name brands. It will fit all whole house filter housings which use a 20" x 4.5" Full Flow water filter replacement cartridge.