Swimming Pool Ph Test Paper Strip. FEATURES: 6 in 1 Test Strip Kit: 6 Color Indicators on Each Strip Pool Chemical Test Strips Tests for 6 Parameters: Total Chlorine, Free Chlorine/Bromine, PH, Total Alkalinity, Cyanuric Acid, Total Hardness. 5 in 1 Test Strip Kit: 5 color Indicators on Each Strip Pool Chemical Test Strips Tests for 5 Parameters: Total Chlorine, Free Chlorine/Bromine, PH, Total Alkalinity,Total Hardness. 4 in 1 Test Strip Kit: 4 color Indicators on Each Strip Pool Chemical Test Strips Tests for 4 Parameters: Total Chlorine, Free Chlorine/Bromine, PH, Total Hardness. 3 in 1 Test Strip Kit: 3 color Indicators on Each Strip, Pool Chemical Test Strips Tests for 3 Parameters: Total Chlorine, PH, Total Hardness. 2 in 1 Test Strip Kit: 2 color Indicators on Each Strip, Pool Chemical Test Strips Tests for 2 Parameters: Total Chlorine, PH The Pool and Spa Test Strips is Made of High Quality Imported Filter Paper, 6 Color Indicators on Each Strip, High Accurate and Reliable Instant Reading Are Obviously to See. Simply Dip a Test Strip into Water for 2 Seconds, then Take It out and Wait for 15 Seconds, Compare Each Test Strip to the Color Chart on the Bottle, then You Can Obtain the Results. The Pool Water Test Strips Can Help You Test Swimming Pool, Spa, Hot Tub's Water Chemistry, So That to Keep the Pool Water in a Healthy and Clean Condition. 50 Counts Water Quality Test Strips,seal Well with 5 Individual Moisture-proof Packages in One Plastic Bottle to Ensure the Test Strips Can Store for 2 Years. HOW TO USE: Just Dip a Strip in Water for 2s, then Take It out and Wait for 15s. Compare Each Panel Color Changes to the Color Chart on the Bottle. You Will Obtain the Accurate Results of Water Quality. SPECIFICATIONS: Size:95*37MM Weight:20g Package Includes: 1* Pool Test Strips (50pcs) . Your order will be shipped from abroad so please allow the necessary time of at least 14 work days for delivery due to ongoing delays in postal deliveries globally.