{"product_id":"raypak-014875f-polymer-tube-bundle-156a","title":"Raypak 014875F Polymer Tube Bundle Replacement for 156A Heaters","description":"\u003ch2\u003eRaypak 014875F Polymer Tube Bundle Replacement for 156A Heaters\u003c\/h2\u003e\u003cp\u003eIf your 156A heater is still firing but taking too long to raise water temperature, or you are seeing internal moisture, seepage, or scale in the exchanger section, the tube bundle is one of the first major assemblies to inspect. This is a direct repair point when a Raypak heater is not working efficiently because the internal heat-transfer section is failing.\u003c\/p\u003e\u003cp\u003eThis polymer tube bundle is the internal assembly that carries water through the heated section of compatible 156A heaters. When the bundle becomes restricted, worn, or starts leaking internally, heater output drops and larger internal repairs can follow. Replacing it restores the core water path where combustion heat moves into the circulating water.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeater runs but water temperature rises slowly\u003c\/li\u003e\n\u003cli\u003eInternal leakage develops in the exchanger section\u003c\/li\u003e\n\u003cli\u003eScale or corrosion is found during teardown\u003c\/li\u003e\n\u003cli\u003eRaypak heater troubleshooting points to core heat transfer failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat this part does:\u003c\/strong\u003e It forms the internal tube bundle that transfers heat into circulating water inside the heater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Raypak 156A heaters with polymer header configuration. Confirm with your model number before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 014875F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Polymer tube bundle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 156A heaters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM Value:\u003c\/strong\u003e A genuine Raypak replacement part helps maintain the intended fit and internal water path for the original heater design. On a repair this major, correct bundle configuration matters because the wrong assembly can cost you labor twice.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.aquaterrabackyard.com\/pages\/contact-us\" target=\"_blank\"\u003e\u003cstrong\u003eNeed help confirming compatibility? Contact us ?\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.aquaterrabackyard.com\/collections\/raypak\" target=\"_blank\"\u003e\u003cstrong\u003eShop all Raypak parts ?\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":51834997539090,"sku":"014875F","price":622.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/medium_8eccc9ee-8ef8-4811-9d2e-938129484c37.jpg?v=1767390857","url":"https:\/\/www.aquaterrabackyard.com\/products\/raypak-014875f-polymer-tube-bundle-156a","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}