{"product_id":"grant-yellow-system-low-level-extension-26-70kw","title":"Grant Yellow System LOW Level Extension 26\/70kw","description":"\u003cp\u003eThis low level extension is designed for use with Grant Vortex and VortexBlue internal and boiler house oil boilers, extending the reach of balanced flue systems by 675mm. Manufactured for straightforward connection, it enables installers to adapt flues to suit specific wall thicknesses on site.\u003c\/p\u003e\u003cp\u003eSuitable for both domestic and light commercial heating applications, the extension supports installation flexibility where longer flue runs are required. The component is typically used alongside compatible low level flue kits to ensure efficient boiler operation and a tidy external appearance.\u003c\/p\u003e","brand":"Huws Gray","offers":[{"title":"675mm","offer_id":53103729639760,"sku":"U0103427","price":108.68,"currency_code":"GBP","in_stock":true},{"title":"450mm","offer_id":53103729672528,"sku":"U0103426","price":92.52,"currency_code":"GBP","in_stock":true},{"title":"225mm","offer_id":53103729705296,"sku":"U0103425","price":77.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/5417\/9408\/files\/a3fef263d20000425a6857d8a1aa2fa9.jpg?v=1780525003","url":"https:\/\/totalsite.supply\/products\/grant-yellow-system-low-level-extension-26-70kw","provider":"Total Site Supply UK","version":"1.0","type":"link"}