Elite Aseptic Spa Filter Cartridge Replacement For Unicel 4CH-21 Pleatco PTL18P4 48 frame delivering years of trouble-free service

delivering years of trouble-free service so you enjoy clear

and clear cloudy water

For Filters Manufactured After November 1998

6-inch diameter plate: Provides a stable base and reduces splash during cleaning

and keeps your vehicle or equipment rolling quietly and confidently

Elite Aseptic Spa Filter Cartridge Replacement For Unicel 4CH-21 Pleatco PTL18P4 48 frame delivering years of trouble-free serviceElite Aseptic Spa Filter Cartridge Replacement HF4H21 01M Upgrade your spa filtration with the Elite Aseptic HF4H21 01M cartridge, a direct replacement for Unicel 4CH 21 and Pleatco PTL18P4. Compatible with Filbur FC 0121 and Pageant Spa Top Load models, this USA made cartridge features turquoise end caps and advanced aseptic media for reliable, sanitary filtration. It measures 8 inches long, 4. 625 inches in outer diameter, with a bottom 1. 5 inch