Monitor chlorine stabilizer levels with Taylor Cyanuric Acid tests for optimal sanitization
The original Harmsco SC/TC-155 cartridge measures 7-3/4" outer diameter
this factory kit restores the full manifold assembly to original specification
at the widest point of skimmer
It seats at the pool surface interface
Pentair Skimmer Lid with Thermometer 9-7/8" White | SwimQuip, Swimrite, Jacuzzi (New Style), Hayward | L1 C8416 Monitor chlorine stabilizer levels withOEM Skimmer Lid with Built In Thermometer for SwimQuip, Swimrite, Jacuzzi (New Style), and Hayward Skimmers The Pentair Skimmer Lid with Thermometer (L1) is the OEM replacement 9 7 8" skimmer lid for SwimQuip, Swimrite, Jacuzzi (New Style), and Hayward skimmers supplied in white to match original equipment. What It Does This lid replaces the standard skimmer cover while adding an integrated pool thermometer directly into the lid face eliminating the