arwater Hot Tub, Pool and Spa Test Strips x 25 - 3 in 1 - Measures Chlorine, PH and Total Alkalinity

25 test strips: Includes 25 x clearwater dip test strips that make caring for your pool simple and easy Measures chlorine, PH and alkalinity: Measures various quality levels of swimming pool or spa water to indicate what chemicals are needed to prevent harmful bacteria entering your water Quick and easy to use - simply dip the test strips into the water and check the results on the handy printed colour chart Directions: Dip strip and remove immediately, hold strip level for 15 seconds, use the simple-to-use guide on bottle to read the results Clearwater is a BISHTA approved member and recommended by brands such as Bestway and Lay-Z-Spa for reliable, safe and high-quality water treatment