{"product_id":"air-flow-products-84db18-duct-board-tab-takeoff-18-in","title":"Air Flow Products 84DB18 Duct Board Tab Takeoff 18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AIR FLOW PRODUCTS 84DB18 is an 18-inch duct board tab takeoff fitting used in low-pressure sheet metal and duct board distribution systems. Tab takeoffs provide a direct branch connection point on a main duct run, allowing installers to tap off supply air to individual zones or registers without field-fabricating a transition. This fitting is sized at 18 inches and is designed for use with duct board construction methods common in residential and light commercial HVAC installations. HVAC sheet metal mechanics and duct fabricators are the primary installers of this fitting type.\u003c\/p\u003e\n\u003cp\u003eTab takeoffs like the 84DB18 are used in forced-air supply duct systems where duct board is the primary construction material. They are typically installed on rectangular main trunk lines and allow branch runs to be connected cleanly and consistently. This fitting suits residential new construction and retrofit applications where duct board trunk-and-branch layouts are specified by the mechanical contractor or system designer.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e18-inch size for direct branch connection on duct board main trunk lines\u003c\/li\u003e\n  \u003cli\u003eTab-style design integrates with duct board construction methods\u003c\/li\u003e\n  \u003cli\u003eSupports low-pressure forced-air supply distribution systems\u003c\/li\u003e\n  \u003cli\u003eEliminates the need for field-fabricated branch transitions at the trunk\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style fitting for duct board HVAC distribution systems where tab takeoff connections are required at the main trunk line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC mechanic or qualified sheet metal installer. Power down the air handling unit and confirm the system is de-energized before cutting into an existing duct run. Secure all connections per local mechanical codes and the applicable sections of the SMACNA Duct Construction Standards. Seal all joints with code-approved duct tape or mastic appropriate for duct board assemblies.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Duct Board Tab Takeoff\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 84DB\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: 84DB18\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AIR FLOW PRODUCTS","offers":[{"title":"Default Title","offer_id":51342882570546,"sku":"84DB18","price":34.52,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310553284.jpg?v=1782009507","url":"https:\/\/voomisupply.com\/products\/air-flow-products-84db18-duct-board-tab-takeoff-18-in","provider":"Voomi Supply","version":"1.0","type":"link"}