{"product_id":"4-inch-no-resist-back-draught-grille-brown","title":"4 Inch 'No Resist' Back Draught Grille - Brown","description":"\u003cp\u003eThe Tornado Energysaver cowl is one of the most effective external grilles available. It counteracts the detrimental effects caused by wind which dramatically affects the extraction and performance \u003cspan style=\"line-height: 20.79px;\"\u003elevels \u003c\/span\u003eof extractor fans.  In turn it makes the fan more energy efficient compared to standard fixed or gravity grilles.\u003cbr\u003e\u003cbr\u003eWhilst increasing performance it also helps eliminate back draughts which are common when a fan is switched off. We recommend the use of duct clamps with all ducting and grilles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlease note that these grilles are not suitable for a soffit installation.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDimensions\u003cbr\u003eWidth: 149mm\u003cbr\u003eHeight: 149mm\u003cbr\u003eSpigot Diameter: 98mm\u003c\/p\u003e","brand":"Tornado","offers":[{"title":"Default Title","offer_id":58032056172808,"sku":"NVT ESG4BR","price":14.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1044\/2362\/0872\/files\/4-inch-no-resist-back-draught-grille-brown-3458-p.png?v=1784041550","url":"https:\/\/www.extractorfanworld.co.uk\/products\/4-inch-no-resist-back-draught-grille-brown","provider":"Extractor Fan World","version":"1.0","type":"link"}