{"product_id":"air-flow-products-84rat18-airtight-stick-on-round-takeoff","title":"Air Flow Products 84RAT18 Airtight Stick-on Round Takeoff","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AIR FLOW PRODUCTS 84RAT18 is an airtight stick-on takeoff fitting designed for round duct pipe connections in forced-air HVAC systems. This 18-inch fitting uses an adhesive mounting method that bonds directly to the main duct surface, eliminating the need for sheet metal screws or additional fasteners at the collar. The airtight design reduces conditioned air loss at the branch takeoff point, which is a common source of duct leakage in both new construction and retrofit ductwork. HVAC sheet metal installers and duct fabricators are the primary trades that work with this type of fitting.\u003c\/p\u003e\n\u003cp\u003eThe 84RAT18 is suited for residential and light commercial forced-air HVAC installations where round branch takeoffs are required from a main trunk duct. The stick-on application method makes it a practical choice in tight ceiling or attic spaces where driving sheet metal screws into a main trunk is difficult or not preferred. The 18-inch diameter accommodates high-volume branch runs in larger duct systems. No compatibility with specific equipment models is specified by the manufacturer for this fitting.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAirtight construction minimizes conditioned air loss at the branch takeoff collar\u003c\/li\u003e\n  \u003cli\u003eStick-on adhesive mounting eliminates the need for sheet metal screws at the connection point\u003c\/li\u003e\n  \u003cli\u003eRound profile at 18 inches suits high-volume branch duct runs\u003c\/li\u003e\n  \u003cli\u003eDesigned for straightforward field installation in new construction and retrofit applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and new-installation round branch takeoff fitting for residential and light commercial round duct systems where an 18-inch branch connection is required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed HVAC technician or sheet metal installer. The main trunk duct surface should be clean, dry, and free of dust or debris before adhering the fitting to ensure a proper seal. Shut down the air handling unit before cutting into or modifying any section of the duct system. Local mechanical codes and SMACNA ductwork standards should be followed for branch takeoff placement, spacing, and sealing requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTakeoff Diameter\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Method\u003c\/strong\u003e: Stick-On Adhesive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AIR FLOW PRODUCTS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 84RAT18\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AIR FLOW PRODUCTS","offers":[{"title":"Default Title","offer_id":51344636641586,"sku":"84RAT18","price":58.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554405.jpg?v=1782038668","url":"https:\/\/voomisupply.com\/products\/air-flow-products-84rat18-airtight-stick-on-round-takeoff","provider":"Voomi Supply","version":"1.0","type":"link"}