{"product_id":"air-flow-products-840-1-ratd20-000006-stick-on-takeoff","title":"Air Flow Products 840-1-RATD20-000006 Stick-on Takeoff","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe AIR FLOW PRODUCTS 840-1-RATD20-000006 is an airtight stick-on takeoff fitting designed for round duct pipe with an integrated damper. This fitting mounts directly to the main trunk line using an adhesive-backed gasket seal, creating a low-leak connection point for branch runs. The built-in damper allows airflow balancing at the takeoff without requiring a separate balancing collar. The 6-inch collar diameter and 2-inch standoff depth make this fitting suited for standard residential and light commercial forced-air duct systems. HVAC installers and sheet metal technicians use this fitting when running branch supplies off rectangular or oval main trunks.\u003c\/p\u003e\u003cp\u003eThis takeoff is intended for use in forced-air supply duct systems where airtight performance is required at branch connection points. The stick-on design speeds installation on trunk lines by eliminating the need to cut and fit a traditional collar boot. The integral damper lets technicians balance individual zones or supply runs during system commissioning without adding separate hardware. This fitting is appropriate for new construction duct rough-in as well as duct modification and branch addition work in retrofit applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAirtight adhesive-backed gasket seal eliminates air leakage at the trunk connection\u003c\/li\u003e\n\u003cli\u003eIntegrated damper allows airflow balancing at the branch takeoff point\u003c\/li\u003e\n\u003cli\u003e6-inch round collar accommodates standard 6-inch flex duct or hard pipe branch runs\u003c\/li\u003e\n\u003cli\u003e2-inch standoff provides clearance between the trunk surface and the branch connection\u003c\/li\u003e\n\u003cli\u003eStick-on installation reduces labor compared to traditional cut-in collar methods\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and new-installation fitting for residential and light commercial forced-air supply duct trunk lines accepting a 6-inch round branch takeoff.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician or qualified sheet metal installer. Power down the air handler or furnace at the disconnect before beginning any duct work. Clean and dry the trunk surface thoroughly before pressing the adhesive gasket to ensure a proper airtight seal. Follow local mechanical codes and SMACNA duct construction standards for sealing, support, and damper access requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollar Diameter\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandoff Depth\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper\u003c\/strong\u003e: Integrated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Stick-On Adhesive Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Type\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 840-1-RATD20-000006\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AIR FLOW PRODUCTS","offers":[{"title":"Default Title","offer_id":51347990511922,"sku":"840-1-RATD20-000006","price":30.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310553249.jpg?v=1782117206","url":"https:\/\/voomisupply.com\/products\/air-flow-products-840-1-ratd20-000006-stick-on-takeoff","provider":"Voomi Supply","version":"1.0","type":"link"}