{"product_id":"26-58303-k","title":"Balboa BP Series 15\" 4.0kW Flo-Thru Heater (26-58303-K)","description":"\u003cp\u003eBalboa BP Series 15\" 4.0kW Flo-Thru Heater (26-58303-K) is designed for compatible Balboa BP Series control systems and provides a 4.0kW heating configuration in a 15\" flow-through format. BP applications can use closely related heater assemblies, so the original part number and installation details should be verified before selecting a replacement.\u003c\/p\u003e\u003cp\u003eBalboa BP Series systems combine modern control logic with application-specific heater configurations. A correctly matched heater allows the control pack, circulation system, and heating circuit to operate as intended, while an incorrect wattage or connection configuration can create fitment problems or prevent the system from functioning properly.\u003c\/p\u003e\u003cp\u003eThe 4.0kW rating is a common full-size spa heating specification, but output alone does not determine interchangeability. Two 4.0kW heaters may use different control families, sensor arrangements, wiring interfaces, mounting details, or plumbing positions. Verifying those details before installation helps prevent an otherwise similar-looking heater from becoming an incorrect replacement.\u003c\/p\u003e\u003cp\u003eProper fitment begins with verification. Compare the existing heater’s part number, length, rated output, sensor or control connections, plumbing orientation, and electrical requirements before ordering. Spa heaters are not universally interchangeable, and taking a few minutes to confirm these details can reduce installation delays, unnecessary returns, and repeat service calls.\u003c\/p\u003e\u003cp\u003eOnce correctly matched and installed, the Balboa 26-58303-K can help restore dependable water heating, steadier temperature maintenance, and the day-to-day comfort expected from a properly operating spa.\u003c\/p\u003e\u003cul\u003e\n  \u003cli\u003eDesigned for compatible Balboa BP Series spa control applications\u003c\/li\u003e\n  \u003cli\u003e4.0kW rated heating output\u003c\/li\u003e\n  \u003cli\u003e15\" heater configuration for correct physical fitment\u003c\/li\u003e\n  \u003cli\u003eMatch original electrical, plumbing, and control-system requirements\u003c\/li\u003e\n  \u003cli\u003eSupports dependable temperature recovery when correctly matched and installed\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Therm Products","offers":[{"title":"Default Title","offer_id":49079914528923,"sku":"26-58303-K","price":245.76,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1751\/9347\/files\/26-58303-K.jpg?v=1784868205","url":"https:\/\/www.bathandspaparts.com\/en-ca\/products\/26-58303-k","provider":"Bath and Spa Parts Online","version":"1.0","type":"link"}