AquaChek Total Hardness test strips test for Total Hardness (calcium) in pools and spas.
AquaChek Total Hardness test strips have two pads, allowing you to measure both Low Range, up to 120 ppm (mg/L), and High Range, from 250 to 1,000 ppm.
Compare these test results against your favorite liquid kit. Just dip an AquaChek® Total Hardness strip in pool or spa water for one second and remove it immediately. You get test results in seconds!
25 strips per bottle.
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