Description Our water test strips are great testing tools for testing the quality of different water sources. No need to spend a lot of money on expensive pool water tests. With our water test strips, you can test your well water, aquarium, pool water, hot tub, and spa. Features -Color:White. -Material: Paper.-Size: About10.00X3.50X3.50cm or 3.93X1.38X1.38in.-6 in 1 test: TC: 0-50 free chlorine or bromine: 0-10 or 22, PH: 6.8-8.4, Alk: 0-400, CYA: 0-240, TH: 0-1000- Suitable for the hot tub water, aquariums, swimming pools and spas.- No need to be a professional, you can also get your results quickly and easily.- Made of premium material, this product is durable, handy and long-time use.- It could test total alkalinity, pH, hardness, free chlorine or bromine, cyanuric acid, total chlorine.- The test paper has high precision, fast, convenient carrying, which will be a helpful assistant for you. Packing list: 50 x test strips