{"product_id":"grant-yellow-system-low-level-extension-675mm-12-26kw-x90l","title":"Grant Yellow System LOW Level Extension 675mm 12\/26kw X90L","description":"\u003cp\u003eThis low level extension is designed for use with Grant Vortex and VortexBlue oil boilers where a longer balanced flue run is needed. At 675mm in length, it allows installation flexibility on sites where wall thickness or layout demands an extended flue solution.\u003c\/p\u003e\u003cp\u003eSuitable for both internal and boiler house models, the extension features a round, self-sealing duct to connect easily with compatible kits. It is typically used by heating engineers on oil boiler installations to support effective flue routing and maintain safe operation, particularly where flue exits through thicker external walls.\u003c\/p\u003e","brand":"Huws Gray","offers":[{"title":"Default Title","offer_id":53107032129872,"sku":"U0103422","price":92.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/5417\/9408\/files\/6faf873c4e24b7b07d7abd5160a3d9ef.jpg?v=1780566863","url":"https:\/\/totalsite.supply\/products\/grant-yellow-system-low-level-extension-675mm-12-26kw-x90l","provider":"Total Site Supply UK","version":"1.0","type":"link"}