{"product_id":"raypak-004964f-return-header-ci-155b","title":"Raypak 004964F Return Header CI for 155B Heaters – OEM","description":"\u003ch2\u003eRaypak 004964F Return Header CI for 155B Heaters – OEM\u003c\/h2\u003e\u003cp\u003eIf your 155B heater is leaking from the return side, showing rust around the header, or losing integrity where heated water exits the exchanger, the return header is one of the first water-side components to inspect. Header damage can create pressure loss, external leaks, and unstable flow through the heater.\u003c\/p\u003e\u003cp\u003eThis cast iron return header collects heated water as it leaves the exchanger and directs it back into the plumbing path on compatible 155B heaters. When the header cracks, corrodes, or no longer seals correctly, the heater can leak and lose water-side stability. Replacing it restores the return-side water routing assembly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWater leak develops at the return side of the heater\u003c\/li\u003e\n\u003cli\u003eHeader shows corrosion, cracking, or worn sealing surfaces\u003c\/li\u003e\n\u003cli\u003ePressure loss appears around the exchanger outlet area\u003c\/li\u003e\n\u003cli\u003eNeed to fix a Raypak heater with return-side header failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat this part does:\u003c\/strong\u003e It routes heated water out of the exchanger and back into the plumbing system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Raypak 155B heaters. Confirm with your model number before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 004964F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Return header\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cast iron\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM Value:\u003c\/strong\u003e A genuine Raypak return header helps maintain the intended fit, flow path, and sealing surfaces on the water side of the heater. Header repairs work better when the replacement matches the original exchanger layout.\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":51835249623314,"sku":"004964F","price":385.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/medium_c7b67204-2f6b-4ca0-978f-980e877a21c9.jpg?v=1767391090","url":"https:\/\/www.aquaterrabackyard.com\/products\/raypak-004964f-return-header-ci-155b","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}