50/100pcs Swimming Pool PH Test Paper High Precision 7-in-1 Residual Chlorine Value Alkalinity Hardness Tester for Pool Spa

It's a great honor for you to visit my store. Good luck with your favorite purchasesHign-concerned Chemical : none Model Number : PH Test Paper Brand Name : alloet Origin : Mainland China Test Strips : Swimming Pool PH Test Paper Water Test PH Strips : Water Tester Paper Origin : Mainland China Model Number : Test Strips Bottle size : about 96 * 36mm/3.77 * 1.41 inch Total hardness : 0-50-100-250-500-1000 Total bromine : 0 0.5/1 1/2.0 3/6.6 5/11 10/22 Total chlorine gas : 0-25-50-100-250-500 PH : 6.2-6.8-7.2-7.6-8.0-8.4 Total alkalinity : 0-40-80-120-180-240 Residual chlorine : 0 0.5/1 1/2.0 3/6.6 5/11 10/22 Acid cyanide : 0 30-50 100 150 240 The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom'sd policies and EU Product Safety and Compliance laws.