AquaChek 552244 6-in-1 Test Strips for Spas
Add whilst the filtration system is running and allow to run on for at least 1 hour. Use 25mls per week or as a defoamer as required. Test Strips 3-in-1 (50 pcs) How much will I need? A quick and easy formula for testing Chlorine, pH and Total Alkalinity levels in your hot tub. Each pack contains 50 strips, which we recommend you use …
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