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This extended runtime is ideal for mid- to larger-size residential pools or busy households
precise suction control
outdoor spas
enabling faster stabilization of your sanitizer
Makes sanitizer more effective by eliminating fluctuations in pH level
Hayward Aqua Solar Pool Control GL 235 Differential Temperature pool feeder This extended runtime is idealHayward Aqua Solar Pool Control GL 235 Differential Temperature Intro Meet the Hayward Aqua Solar Pool Control GL 235, a differential temperature controller that optimizes solar heating for pools, spas, and hot tubs. It senses water temperature against a sun warmed supply, engaging heat transfer only when needed to save energy. With an adjustable high limit, you can fine tune comfort without overshoot. Built for outdoor reliability, it integrates with