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it helps you keep filtration within the ideal 10–25 psi range for clear water and efficient backwashing
four-parameter test strip simplifies routine maintenance and helps you keep water chemistry balanced with confidence
Two #20 variants included: supports both 3/4"–1 3/4" and 1 9/16"–2 1/2" hose diameters for broader use
Continuous alarm until reset: Ensures notification is hard to miss
and calcium hardness
AquaChek TruTest Spa Test Strips Size:50 Strips it helps you keep filtrationAquaChek TruTest Spa Test Strips give hot tub owners a quick and easy way to test their pool's overall health simply by inserting into the TruTest Spa Digital Test Strip Reader, which provides highly accurate results concerning the three main components of spa chemistry: pH, free chlorine or bromine, and total alkalinity. When combined with the TruTest Spa Digital Test Strip Reader, you get fast results with no need for color matching.
