Aquachek Red 4-In-1 Test Strips, 50 Strips | 521252A FG1006 confirm your filter uses a

confirm your filter uses a 7 full + 1 partial grid layout and that your existing grids measure 12" × 11"

the PIN20 delivers consistent pore structure and dimensional stability throughout its service life — resisting channeling and maintaining reliable dirt capture with every filtration cycle

Owning a pool with a variable speed motor is more affordable and better for the environment

Economical and won’t clog filters

Performance and fit are equivalent — always confirm by measuring your existing cartridge's length

Aquachek Red 4-In-1 Test Strips, 50 Strips | 521252A FG1006 confirm your filter uses aAquaChek Red 4 in 1 Test Strips, 50 test strips Tests for Total Bromine, pH, Total Alkalinity and Total Hardness Provides Test Results in seconds! To keep your pool at its best, test at each end at least twice a week, and test your spa before each use. Comes with complete instructions in multiple languages