{"product_id":"hayward-haxbpk1931-bypass-kit-old-style-header","title":"Hayward HAXBPK1931 Bypass Kit - Old Style Header","description":"\u003cp\u003e\u003cstrong\u003eWhat This Part Is Used For\u003c\/strong\u003e\u003cbr\u003e The Hayward HAXBPK1931 Bypass Kit is used in H Series heaters with an old style header. It regulates water flow through the heater to maintain proper operating temperature. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy This Part Matters\u003c\/strong\u003e\u003cbr\u003e A worn or damaged bypass can cause overheating, scale buildup, or reduced heater efficiency. Replacing the bypass kit helps maintain correct internal water flow and protects the heat exchanger. Proper flow control is critical for long-term heater performance. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features and Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine Hayward bypass kit\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: HAXBPK1931\u003c\/li\u003e\n\u003cli\u003eFor H Series heaters with old style header\u003c\/li\u003e\n\u003cli\u003eRegulates internal water flow\u003c\/li\u003e\n\u003cli\u003eSupports heat exchanger protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eInstallation and Fitment Guidance\u003c\/strong\u003e\u003cbr\u003e Heater should be powered down and isolated before service. Confirm by manufacturer part number before ordering. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout the Hayward Brand\u003c\/strong\u003e\u003cbr\u003e Hayward H Series heaters are widely used in residential and light commercial pools. Their internal bypass systems help maintain efficient heat transfer. Genuine Hayward parts ensure correct fit and safe operation. Service professionals rely on Hayward for dependable heater components. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon Service Context\u003c\/strong\u003e\u003cbr\u003e Commonly replaced during heater rebuilds or when diagnosing overheating and flow-related performance issues. \u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52050108612882,"sku":"HAXBPK1931","price":79.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/HPPHAXBPK1931_0.jpg?v=1771891715","url":"https:\/\/www.aquaterrabackyard.com\/products\/hayward-haxbpk1931-bypass-kit-old-style-header","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}