AquaChek Pool Water Test Strips – Calcium Hardness – 25 Count
AquaChek Pro II Total Hardnes/Cyanuric Acid/TDS Test Strips (25 count) AquaChek Pro II provides an all-in-one solution for key chemistries that require less frequent monitoring and is ideal for service professionals. Tests for 4 important chemistries in seconds: Cyanuric Acid, Total Dissolved Solids, High Range Hardness, and Low Range Hardness. Get 4 important test results in just one dip! Just dip an AquaChek Pro II strip in your pool or spa water for two seconds and remove it immediately. You get test results in seconds!