Pool Check 3 in 1 Copper Test Kit (50 Strips) YGroup_Melenia with super strong welded seams

with super strong welded seams to last long winters and hot summers

this durable filter ensures years of hassle-free operation with minimal maintenance

including sand

luxurious way to enjoy the pool

non-metallic

Pool Check 3 in 1 Copper Test Kit (50 Strips) YGroup_Melenia with super strong welded seamsPool Check Copper 3in1 is the world's first test strip designed to measure Copper sanitizer levels used in alternative sanitizing systems (for both liquid and granule copper sulfate pentahydrate and ionizing systems). Copper test strips can monitor copper ionizers and copper sulfate pentahydrate additives. Copper is used in pool water to control algae, improve water clarity and reduce the amount of chlorine, bromine, and other harmful oxidizing