Unicel C-4401 | 35 sq ft Spa Filter Cartridge Type_Ozone Generator It works with every common

It works with every common sanitizing system

pull your current cartridge and read the part number printed on it — your old filter is the most reliable guide there is

meaning you'll need to remove calcium before your salt cell will run efficiently

1 x B36-075 Blower Fan Kit

Unicel C-4401 | 35 sq ft Spa Filter Cartridge Type_Ozone Generator It works with every commonThe Unicel C 4401 delivers 35 square feet of filtration across 158 pleats of heavyweight 4 oz Reemay 2040 polyester media. Built to meet or exceed OEM specifications, it's the compact replacement cartridge for Pentair, Rainbow Dynamic Series IV, and Waterway skim filter systems. Filtration is the quiet backbone of clean spa water. Every soak leaves behind body oils, lotions, hair, and fine debris, and the cartridge is what removes all of it before it