Unicel C-4405 2-Pack | 50 sq ft Rainbow DSF Spa Filter Type_Loop StartNaturally Pre-Filter:

StartNaturally Pre-Filter:

Rounded/Peaked Hybrid Chamber Design

Heat & Glo: Cosmo Series

Great for permanent or temporary use

The Gleam handles all of that through one large cartridge rather than a pair of smaller ones

Unicel C-4405 2-Pack | 50 sq ft Rainbow DSF Spa Filter Type_Loop StartNaturally Pre-Filter:The Unicel C 4405 is a matched pair of replacement filter cartridges delivering 50 square feet of combined filtration for Pentair Rainbow Dynamic Series IV systems and Waterway skim filters. It is sold as a set of two because the system is designed around two cartridges working side by side not because two is a convenient bulk quantity. That distinction matters more than it might sound. These housings run a pair of compact cartridges in parallel