Features： 1、[Fast And Accurate] Can test PH value, alkalinity, hardness, and other parameters in swimming pool water at the same time, with accurate and reliable results. 2、[Multi Application] PH test strips are widely used in aquariums, swimming pools, spas, industrial water, drinking water, pond, spa water and many other scenarios. 3、[Efficient And Convenient] PH testing strips are easy to use, just dip the test paper into the water for a few moments to get the test results, saving time and saving your mind. 4、[With Storage Bottle] The product is carefully packaged, 50 strips in a bottle, easy to store and keep cool and dry, avoid high temperature to ensure product quality. 5、[Long Lasting And Durable] This water PH test strips are made of test paper material, can be used many times, not easy to tear, long service life. Specification： Item Type: PH Test Strips Material: Test Paper Specification: 50 Strips Per Bottle Storage: Cool and Dry Place, Avoid High Temperature Gross Weight: Approx. 78g/2.8oz Use: For aquarium, swimming pool, spa, industrial water, drinking water, pond, hot spring water, etc. Package List： 1 xPH Test Strips (A Bottle of 50 Strips) 1 x Instruction Manual 1 x Storage Bottle