{"product_id":"broan-nutone-s413-round-duct-transition-3-25x10-to-8-inches","title":"Broan-nutone s413 Round Duct Transition 3.25x10 to 8 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROAN-NUTONE s413 is a duct transition fitting designed to connect a 3.25 x 10 inch rectangular duct opening to an 8-inch round duct. This type of fitting is a standard component in residential and light-commercial ventilation systems where ductwork changes from a flat rectangular profile to a round run. HVAC technicians and ventilation installers use transitions like this when routing exhaust or supply air from range hoods, bath fans, or air handlers into round duct runs. The s413 provides the geometry change needed to maintain airflow continuity between differing duct shapes and sizes.\u003c\/p\u003e\n\u003cp\u003eThis transition is typically used in kitchen range hood installations, bathroom ventilation setups, and similar exhaust applications where a rectangular collar on the unit must connect to a round duct in the wall or ceiling. It is suited for residential new construction and retrofit work where the existing duct run is 8-inch round and the appliance collar is 3.25 x 10 inches.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTransitions from a 3.25 x 10 inch rectangular opening to an 8-inch round duct\u003c\/li\u003e\n  \u003cli\u003eDesigned for use with BROAN-NUTONE ventilation equipment using matching collar dimensions\u003c\/li\u003e\n  \u003cli\u003eStandard fitting geometry supports common residential exhaust duct layouts\u003c\/li\u003e\n  \u003cli\u003eCompact form factor suitable for tight installation spaces above cabinets or in ceiling cavities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style duct transition for BROAN-NUTONE ventilation appliances with a 3.25 x 10 inch rectangular duct collar connecting to an 8-inch round duct system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis fitting is installed by HVAC technicians or ventilation specialists as part of an exhaust duct system. Shut off power to the connected appliance before beginning duct work. Secure all duct connections with approved foil tape or sheet metal screws and seal joints to prevent air leakage, in accordance with applicable mechanical codes. Do not restrict or compress the duct transition during installation, as this reduces airflow performance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Round Duct Transition\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRectangular Duct Opening\u003c\/strong\u003e: 3.25 x 10 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRound Duct Size\u003c\/strong\u003e: 8 inches\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: BROAN-NUTONE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: s413\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROAN-NUTONE","offers":[{"title":"Default Title","offer_id":51161649938738,"sku":"S413","price":54.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/306255088.jpg?v=1778878079","url":"https:\/\/voomisupply.com\/products\/broan-nutone-s413-round-duct-transition-3-25x10-to-8-inches","provider":"Voomi Supply","version":"1.0","type":"link"}