Description
This refill of the nonhazardous TesTab® reagent used in Earth Force® Low-Cost and Standard water-testing kits (items #652567, #652568, and #652569) can be used to perform 50 tests for pH.
This refill of the nonhazardous TesTab® reagent used in Earth Force® Low-Cost and Standard water-testing kits (items #652567, #652568, and #652569) can be used to perform 50 tests for pH.