The Watts WPC20-975 filter cartridge fits the following water filter housings:
The Watts 20 Micron Pleated 10" Sediment Filter - Blue is a 10 inch water filter used primarily in whole house water filter systems. This pleated water filter reduces sediment, dirt, turbidity, lime scale, rust, sand, silt, and other common particulates and impurities. This pleated sediment filter has a 20 micron rating for improving water quality and taste.
This Watts filter uses advanced synthetic pleated polyester filtration technology for a larger filter surface area, longer cartridge life, higher flow rates, greater dirt holding capacity, lower pressure drop, and more efficient sediment filtration.
Watts 10" Pleated Sediment Filter Specifications (WPC20-975):
This Watts pleated filter is a compatible replacement sediment filter cartridge for similar 10 inch 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.
More technical information about Watts pleated water filters can be found here.