Alkalinity test strip

50 Blue Sparkle 3-in-1 Test Strips for Pool, Spa, and Hot Tub Water Testing - Measures pH, Alkalinity, and Chlorine

3-in-1 Blue Sparkle Hot Tub and Pool Test Strips - 25 Count for pH, Alkalinity, and Chlorine Measurement

3-in-1 Pool and Spa Test Strips - pH, Alkalinity, Chlorine - 100 Pack

7-in-1 Aquarium Water Test Strips for pH, Nitrite, Chlorine, Total Alkalinity, and Hardness Levels

Wave Spa 3 in 1 Water Test Strips for Chlorine, pH & Alkalinity - 50 Pack

Wave Spa 3 in 1 Water Test Strips pack of 50 checks chlorine, pH and total alkalinity levels in spa water. Easy to use for regular maintenance and monitoring of pool water quality.

3-in-1 Pool Test Strips - 150 Count Water Tester for pH, Chlorine & Alkalinity Analysis

Clearwater CH0005 PH Plus Increaser for Swimming Pool and Spa Treatment

Increases the p H level of your spa or above ground pool to maintain comfortable p H levels for your skin whilst you’re enjoying your hot tub or pool - Ensures that your spa or pool stays hygienic and looking pristine so you can fully enjoy your experie

1ltr Algaecide for Lay Z Spa

Used regularly, this product will prevent algae growth in your hot tub or swimming pool

Clearwater CH0010 Chlorine Granules for Hot Tub Spa and Swimming Pool Water Treatment for Rapid Disinfecting and Cleaning, 1 kg

Clearwater's 1 kg chlorine granules provide rapid disinfection and cleaning for hot tub, spa, and swimming pool water. Suitable for use with lay Z-Spa CH0010 models.

3-in-1 Pool and Spa Test Strips - pH, Alkaline, Chlorine (6 Pack)