HTH Multi-purpose 6-Way Test Strips for Swimming Pools,
2021-8-17 · 2021-8-17 · Dip the test strip into the pool water about 18” below the water surface. Be sure to test away from jets or return lines. Immediately remove with pads facing up. Do not shake off excess water. Hold strip level for 20 seconds. Compare to the color chart on the back of the canister. Contains one canister of HTH Multi-Purpose 6-Way Test Strips ...
Get Price