{"product_id":"haywardaquasolarpoolcontrolwithlowvoltageoutputgl235hppgl235","title":"Hayward Aqua Solar Pool Control GL 235 Differential Temperature","description":"\u003cdiv\u003e\n\u003ch1\u003eHayward Aqua Solar Pool Control GL-235 Differential Temperature\u003c\/h1\u003e\n\u003ch2\u003eIntro\u003c\/h2\u003e\n\u003cp\u003eMeet 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.\u003c\/p\u003e \u003ch2\u003eList of Features\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDifferential temperature control:\u003c\/strong\u003e Maintains optimal heating by turning solar flow on only when water is cooler than a set differential, boosting efficiency.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAdjustable high-limit:\u003c\/strong\u003e Calibrated water temperature limit prevents overshoot and protects equipment while delivering consistent comfort.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNocturnal cooling:\u003c\/strong\u003e Optional overnight cooling reduces heat loss so pools wake up ready for morning swims.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRecirculate freeze protection:\u003c\/strong\u003e Internal jumpers enable recirculation during cold spells to guard plumbing from freezing damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRugged outdoor design:\u003c\/strong\u003e Weatherproof enclosure and durable components handle sun, rain, and chemicals year-round.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFinal Thoughts\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":51681721516349,"sku":"HPPGL235","price":516.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/3611\/6541\/files\/HPPGL235_0.png?v=1778223558","url":"https:\/\/www.duckiespoolsupply.com\/products\/haywardaquasolarpoolcontrolwithlowvoltageoutputgl235hppgl235","provider":"Duckies Pool Supply","version":"1.0","type":"link"}