AquaChek Pro II 4-in-1 Pool & Spa Test Strips, 25 Strips

AquaChek Pro II 4-in-1 Test Strips measure specialty water parameters that typically require less frequent testing. They can be paired with AquaChek Pro 5-in-1 strips for a broader professional testing routine.Product Information Tests for cyanuric acid Tests for Total Dissolved Solids (TDS) Tests for low-range hardness Tests for high-range hardness Quantity: 25 test strips