Test Kit 2 in 1 Test Kit Blue #752
$26.99
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NOTE: Store kits in a cool dark place.1. Fill test cell to line with water taken from a depth of 18" (away from return line.2. Add 5 drops of pH solution to the pH cell.3. Add 5 drops of OTO solution to the CL cell.4. Place cover over both cells and invert several times to mix.5. Compare each cell.
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$26.99
(+$11)