The Pentek 255488-43 replaces the following water filter cartridges:
The Pentek ECP50-20 50 Micron 20" Pleated Water Filter is a replacement water filter cartridge that features resin-impregnated cellulose and polyester fiber construction. This pleated water filter cartridge replaces CP and HFCP series filter cartridges and provides higher wet strength than regular cellulose cartridges. In addition, this pleated polyester filter boasts minimal unloading and media migration and a nominal 50 micron rating for the reduction of contaminants in your water.
Pentek ECP50-20 50 Micron 20" Pleated Water Filter specifications: