{"product_id":"southwark-metal-27_3-1-4x10x8-duct-boot-3-25x10-to-8-in","title":"Southwark Metal 27_3-1\/4X10X8 Duct Boot 3.25x10 to 8 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SOUTHWARK METAL 27_3-1\/4X10X8 is a straight stack duct boot that transitions from a rectangular duct opening to a round collar for residential and light commercial forced-air distribution systems. Fabricated from hot dipped galvanized steel, this fitting provides a durable, corrosion-resistant connection between floor or wall stack cavities and round branch ducts. The rectangular inlet measures 3.25 inches by 10 inches, and the round outlet is 8 inches in diameter. HVAC installers and sheet metal contractors use this type of boot to complete supply or return air rough-ins where a wall stack feeds into round flex or rigid duct takeoffs.\u003c\/p\u003e\u003cp\u003eThis straight stack boot is suited for residential new construction and retrofit installations where a floor or wall stack cavity serves as the supply plenum transition point. It fits standard framing cavities and connects to 8-inch round duct runs. The straight configuration keeps the airflow path direct, making it appropriate for installations where the boot registers at the floor or low sidewall and the duct run continues in line with the stack. Installers working to ACCA Manual D layouts and SMACNA duct construction standards will find this fitting meets those applicable guidelines.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRectangular-to-round transition: 3.25 inch by 10 inch inlet to 8 inch diameter outlet\u003c\/li\u003e\n\u003cli\u003eHot dipped galvanized steel construction resists corrosion in unconditioned spaces\u003c\/li\u003e\n\u003cli\u003eStraight stack orientation keeps airflow path direct and minimizes pressure drop\u003c\/li\u003e\n\u003cli\u003eMeets ACCA and SMACNA applicable standards for sheet metal duct construction\u003c\/li\u003e\n\u003cli\u003eCompatible with standard 8-inch round rigid or flexible duct connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and new-construction fitting for residential and light commercial forced-air duct systems using wall or floor stack installations with 8-inch round branch duct connections.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed HVAC technicians or sheet metal contractors. Shut off the air handling unit and confirm the system is de-energized before working inside an active duct system. Secure all duct connections with sheet metal screws and seal joints with UL 181-listed mastic or foil tape per local mechanical code requirements. Consult SMACNA duct construction standards and local building codes for support spacing and fastener requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Hot Dipped Galvanized Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Size (Size A)\u003c\/strong\u003e: 3.25 inches x 10 inches (rectangular)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Size (Size B)\u003c\/strong\u003e: 8 inches diameter (round)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Stack, Straight, Rectangular to Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplicable Standards\u003c\/strong\u003e: ACCA, SMACNA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SOUTHWARK METAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 27_3-1\/4X10X8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51283999031602,"sku":"27_3-1\/4X10X8","price":32.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277034.jpg?v=1781065562","url":"https:\/\/voomisupply.com\/products\/southwark-metal-27_3-1-4x10x8-duct-boot-3-25x10-to-8-in","provider":"Voomi Supply","version":"1.0","type":"link"}