Get more efficient filtration and better water clarity with Unicel filters
Longer time between cleanings; meets oem specifications
Unicel 7CH-752 Replacement Filter Cartridge for 75 Square Foot Dimension One Spas Unicel 7CH-752 filter cartridges (Alternate names: 7CH752) Filters compatible with pools, spas and hot-tubs using Unicel 7CH-752 filter cartridges filters. Compatible with all spas, hot-tubs and pools using Unicel 7CH-752 filter cartridges