AquaChek Silver 7-in-1 Test Strips, 100/Pack | 551236 Clarifiers & Enzymes apply to the backing and

apply to the backing and press firmly into place

When fitting the replacement dome head

Replace this lid when the original shows cracking

Replace the housing if necessary before fitting the new lid

When the original lens becomes cracked

AquaChek Silver 7-in-1 Test Strips, 100/Pack | 551236 Clarifiers & Enzymes apply to the backing andAquaChek 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