ZHIYI 7in1 Pool Hot Tub Spa Test Strips Aquarium Water Testing Kit Water Hardness Ph Total Alkalinity Free Chlorine Nitrite Total Chlorine Bromine

Do you want a quick and easy way to properly maintain your pool water? ZHIYI Pool test strips with quick test and easy understanding features perfect for pool spa and hot tub water quality test. It can detect the content of 7 elements in water? ?Total Hardness ?Free Chlorine ?Total Chlorine ?Bromine ?pH ?Total Alkalinity  ?Nitrite High Accuracy? Made of high-quality filter paper, seven color indicators on each strip, extremely accurate and reliable instant readings are obviously to see.  Included packages: 1 pack, 50 pieces of test strips ?They are sealed well in 1 individual bottles to ensure long-term storage?