AquaChek Silver 7-in-1 Test Strips, 100/Pack | 551236 C8380 fits all System 3 Modular

fits all System 3 Modular Media Filter models Pentair System 3 S7M400 Air Release Valve

or painted in less than an hour

Confirm all components are present before installation

Featuring hard-body design with super-size basketball backboard insta-snap conversion from basketball to volleyball

AquaChek Silver 7-in-1 Test Strips, 100/Pack | 551236 C8380 fits all System 3 ModularAquaChek Silver 7 in 1 Test Strips, 100 strips. Tests for: Total Hardness, Total Chlorine, Total Bromine, Free Chlorine, pH, Total Alkalinity, Stabilizer (Cyanuric Acid) Silver 7 in 1 is our most comprehensive test strip. Trusted by service professionals, this test strip tests for seven key parameters in seconds. Test Ranges: Total Hardness: 0 1,000 ppm Total Chlorine: 0 10 ppm Total Bromine: 0 20 ppm Free Chlorine: 0 20 ppm pH: 6. 2 8. 4 Total