Unicel C-5374 | 65 sq ft Waterway & Rainbow Spa Filter Brand_Flame Boss keeping them suspended in the

keeping them suspended in the water instead of bonding to your spa's surfaces

and let it work

Use the smooth side to grill breakfast pancakes

Media is Unicel's standard 3 oz Reemay polyester — one hundred percent spunbonded polyester over a solid molded core

Unicel C-5374 | 65 sq ft Waterway & Rainbow Spa Filter Brand_Flame Boss keeping them suspended in theThe Unicel C 5374 is a 65 square foot drop in replacement spa filter cartridge built around one standout number: 223 pleats. That is an unusually dense fold count for a cartridge just 5 5 16" across, and it is the reason this filter carries so much capacity in a compartment that a lower capacity cartridge would occupy just as fully. Capacity matters more than most spa owners realize. Filtration area is not about how well a filter cleans on any given