AquaChek Pool And Spa Test Strips, Silver - 4-Pack

• Environmental Test Systems (ETS) is the leading developer, manufacturer and marketer of AquaChek chemical test systems for the Swimming Pool & Spa Industry. ETS provides Simple, Fast & Accurate swimming pool water testing to help keep your pool and spa water clean and healthy!. • AquaChek Yellow tests for Free Chlorine, Total Alkalinity, Cyanuric Acid (Stabilizer) & pH levels. AquaChek Red tests for Total Bromine, Total Alkalinity, Total Hardness & pH levels. 50 test strips per bottle.. • AquaChek Select is a refill strip that tests for Free Chlorine, Total Chlorine, Total Bromine, Total Alkalinity, Total Hardness, Cyanuric Acid (Stabilizer) & pH. AquaChek Select is ideal for people who already have purchased the AquaChek Select Connect kit. 50 test strips per bottle.. • AquaChek White is the ideal test solution for pools operating with a salt generator system! Maintaining the correct level of salt is key to ensuring that your salt generator can produce the correct amount of liquid chlorine to keep your pool water clean and free of contaminants. Tests for Salt (Sodium Chloride) levels. Each bottle includes 10 test strips.. • AquaChek Copper 3-in-1 test strips are designed for use with mineral purification or copper ionization systems. Maintaining proper levels of copper will help ensure that bacteria and other contaminants are eliminated. Tests for Copper, Total Alkalinity & pH levels. Each bottle includes 25 test strips.. • AquaChek Silver 7-in-1 Test Strips is the most comprehensive test strip available! Tests for seven key parameters – in seconds! Tests for Total Hardness, Total Chlorine, Total Bromine, Free Chlorine, pH, Total Alkalinity amp; Stabilizer (Cyanuric Acid). Each bottle includes 100 test strips.