Ulisem 7-in-1 Aquarium Test Strips, pH, Nitrite, Nitrate, Total Hardness, Free Chlorine, Alkalinity, Carbonate, Precise Saltwater, Freshwater Aquarium Testing - Pack of 100

General Description: Ulisem 7-in-1 test strips are designed to analyze water quality in various environments, including aquariums, swimming pools, spas, and hot tubs. Each strip is made from high-quality imported filter paper and features 7 color indicators, allowing for an extremely accurate and reliable instant reading. Technical Specifications: Category: Swimming Pool Test Strips; Material: PET; Test Time: 60 seconds; Weight: 130 g; Instructions: To use the strips, simply immerse them in water for 2 seconds, remove them, and wait 15 seconds. Then, compare the color change of each strip with the color chart on the side of the bottle to obtain the result. Other Information