Description
Hayward 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 Hayward's solar ecosystem for straightforward setup and durable operation.
List of Features
- Differential temperature control: Maintains optimal heating by turning solar flow on only when water is cooler than a set differential, boosting efficiency.
- Adjustable high-limit: Calibrated water temperature limit prevents overshoot and protects equipment while delivering consistent comfort.
- Nocturnal cooling: Optional overnight cooling reduces heat loss so pools wake up ready for morning swims.
- Recirculate freeze protection: Internal jumpers enable recirculation during cold spells to guard plumbing from freezing damage.
- Rugged outdoor design: Weatherproof enclosure and durable components handle sun, rain, and chemicals year-round.
Final Thoughts
The GL-235 delivers precise solar control with Hayward reliability, saving energy while keeping water temperatures safe and comfortable. It’s ideal for homes with solar heating for pools, spas, or hot tubs and for pros seeking predictable performance with minimal setup. Upgrade today to extend swim seasons and maximize your solar investment.














