With Pentair’s trusted engineering
and spa use can resume just 15 minutes after treatment
and is safe for use with all types of spa or hot tub surfaces
To ensure maximum reliability
FAS-DPD chlorine method: Precise readings with minimal interference for accurate chlorine results
AquaChek Select Test Strips Size:50 Strips With Pentair’s trusted engineeringAquaChek'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