AquaChek Silver 7-in-1 Test Strips, 100/Pack | 551236 Clarifiers & Enzymes When the original lens becomes

When the original lens becomes cracked

When fitting the replacement dome head

Replace the housing if necessary before fitting the new lid

apply to the backing and press firmly into place

Length 17" - not including handle/pole connector

AquaChek Silver 7-in-1 Test Strips, 100/Pack | 551236 Clarifiers & Enzymes When the original lens becomesAquaChek 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