DescriptionAre you looking for a professional, yet affordable PH pool test tool? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional pool test reagent will meet your needs. It is one of the best choices for you.Features-Color: Blue. -Material: Liquid. -Size: 15x7x3cm/5.9x2.8x1.2inch. - Made of premium material for durable use. - The test reagent has high precision with simple operation - It is compact and convenient to carry around. - Quickly test the PH, residual chlorine, bromine, total chlorine, total alkalinity and total hardness in water by colorimetric method. - Widely used for swimming pools, spas and other industries.