AquaChek Select Test Strips Size:50 Strips Broad chemical compatibility: Works with

Broad chemical compatibility: Works with chlorine

and other harmful contaminants

FAS-DPD chlorine method: Precise readings with minimal interference for accurate chlorine results

To ensure maximum reliability

With Pentair’s trusted engineering

AquaChek Select Test Strips Size:50 Strips Broad chemical compatibility: Works withAquaChek's Select test strips allow pool and spa owners to test their systems for total hardness, free chlorine, total chlorine, total bromine, pH, total alkalinity, and cyanuric acid. Simply insert the test strip into the pool or spa water for 1 second, and several seconds later you have fast, accurate results. It is recommended that you test your spa before each use, and pools a minimum of twice per week, to get an accurate picture of the health of