AquaChek Red 4-in1 Test Strips are best used for spas or hot tubs using bromine sanitizer. Use this test strip to test your Total Alkalinity, pH, Total Hardness and Total Bromine levels. The ergonomically designed test strips have a flip-open lid to release one test strip at a time for quick and easy testing of your hot tub water.
Recommended Level Readings:
Please, enter a valid value