WaterGuru Cassette C2+/C5+ Combo (3 Pack)

C+ Cassettes use our patented technology to test your water’s chemistry daily and provides our most accurate chemical, pump and temperature readings. 5 months of measurements: 2 C2+ Cassettes measures FC and pH only, and 1 C5+ Cassette measures FC, pH, TA, CH and CYA 10% longer life from 29 days to 32 days for extra “measure now” readings Measurements are not averaged, allowing for better chemical balancing Customize alerts for specific chemicals, water temperature or if your pool heater was left on.