{"product_id":"raypak-005286f-refractory-set","title":"Raypak 005286F – Refractory Set – R405 Front \u0026 Rear Heater","description":"\u003ch2\u003eRaypak 005286F – Refractory Set – R405 Front \u0026amp; Rear Heater\u003c\/h2\u003e\u003cp\u003eIf the combustion chamber in your R405 heater shows cracked refractory, visible hot spots, or signs that heat is no longer being contained the way it should be, the refractory set deserves close attention. Once the front and rear sections start breaking down, combustion heat can stress nearby components and the chamber no longer behaves the same under load.\u003c\/p\u003e\u003cp\u003eThis refractory set replaces the front and rear insulating sections used in the R405 heater combustion chamber. These pieces help contain and direct combustion heat so the chamber operates the way it was designed to. When they crack, crumble, or shift out of place, heat distribution suffers and internal components are exposed to more direct stress.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCracked or deteriorated refractory material in the chamber\u003c\/li\u003e\n\u003cli\u003eVisible hot spots or heat damage near combustion area\u003c\/li\u003e\n\u003cli\u003eCombustion chamber rebuild requires new front and rear blocks\u003c\/li\u003e\n\u003cli\u003eNeed to fix a Raypak heater with worn chamber insulation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat this part does:\u003c\/strong\u003e It insulates the combustion chamber and helps contain heat at the front and rear sections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Raypak R405 front and rear heater chamber. Confirm with your model number before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 005286F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Refractory set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e R405 front and rear heater chamber\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM Value:\u003c\/strong\u003e A genuine Raypak refractory set helps maintain the intended chamber fit and heat containment. Refractory repairs work best when the replacement pieces match the chamber layout correctly.\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":51842726789394,"sku":"005286F","price":309.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/medium_f6469ab0-6277-448c-946d-6c2c750341e3.jpg?v=1767391154","url":"https:\/\/www.aquaterrabackyard.com\/products\/raypak-005286f-refractory-set","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}