{"product_id":"collartight-150-airtight-rangehood-ceiling-collar","title":"Airtight Transfer Duct 150 - Airtight Rangehood Ceiling Collar","description":"\u003cp\u003e\u003cspan\u003eA galvanised steel collar that turns a rangehood duct penetration into a sealed part of your ceiling airtightness layer. The 250 mm square flange fixes and seals to the plasterboard or membrane, and the Ø148 mm spigot slips straight inside standard 150 mm rigid or flexible duct — no tape-only joins, no gaps around the duct where warm air and moisture leak into the roof space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003eRangehood penetrations are one of the largest single leaks in an Australian ceiling. CollarTight gives you a rigid, durable connection that can be sealed once and stays sealed, whether you're chasing a blower door target or just stopping draughts and condensation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003eØ148 mm spigot fits inside 150 mm duct for a snug, easy connection\u003cbr\u003e250 mm square flange for fixing and sealing to plasterboard, membrane or rigid air barrier\u003cbr\u003e0.8 mm galvanised sheet, spot-welded spigot-to-flange junction\u003cbr\u003e200 mm spigot each side of the flange\u003cbr\u003eSuits rangehood, exhaust fan and supply\/extract ventilation ducts\u003cbr\u003eSeal flange perimeter with airtightness tape or sealant on both faces\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003cbr\u003eDuct size: 150 mm nominal\u003cbr\u003eSpigot: Ø148 mm OD\u003cbr\u003eFlange: 250 × 250 mm\u003cbr\u003eOverall height: 400 mm\u003cbr\u003eMaterial: 0.8 mm galvanised steel\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cb\u003eInstallation\u003c\/b\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCut a 150 mm hole in the ceiling lining, insert the collar, fix the flange, then seal the perimeter with airtightness tape or sealant. \u003c\/span\u003e\u003cspan\u003eConnect duct to the spigot and secure with a duct clamp and tape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003eMade for Australian ceilings by Tight House.\u003c\/span\u003e\u003c\/p\u003e","brand":"Tight House","offers":[{"title":"Default Title","offer_id":47154647335084,"sku":null,"price":42.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1413\/9312\/files\/airtight-transfer-duct-150-airtight-rangehood-ceiling-collar-9994822.png?v=1790773148","url":"https:\/\/tighthouse.com.au\/products\/collartight-150-airtight-rangehood-ceiling-collar","provider":"Tight House","version":"1.0","type":"link"}