{"product_id":"seal-tite-3172b-041207-straight-boot-4x12x7-in-30-gauge","title":"Seal-tite 3172B-041207 Straight Boot 4x12x7 in 30 Gauge","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SEAL-TITE 3172B-041207 is a straight sheet metal duct boot designed to transition between round duct and a rectangular floor, ceiling, or wall register opening. Fabricated from 30-gauge galvanized steel, this fitting measures 4 inches by 12 inches by 7 inches and provides a rigid, low-profile connection point at the supply or return air termination. HVAC technicians and sheet metal contractors install this boot as part of residential and light commercial forced-air distribution systems where a clean, durable duct-to-register transition is required.\u003c\/p\u003e\u003cp\u003eThis straight boot is suited for new construction and retrofit duct installations where the duct run terminates flush at the register face without an angled offset. The 4-inch round collar connects directly to standard 4-inch round or oval duct, while the 12-inch by 7-inch rectangular face accepts a correspondingly sized floor, wall, or ceiling register. It is a common fitting in residential forced-air heating and cooling systems served by gas furnaces, heat pumps, or air handlers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStraight-boot design for direct duct-to-register transitions without angular offset\u003c\/li\u003e\n\u003cli\u003e30-gauge galvanized sheet metal construction for rigid, corrosion-resistant performance\u003c\/li\u003e\n\u003cli\u003e4-inch round collar mates with standard 4-inch round flexible or rigid duct\u003c\/li\u003e\n\u003cli\u003e12 x 7 inch rectangular face sized for standard register grille fitment\u003c\/li\u003e\n\u003cli\u003eCompatible with both supply and return air termination applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-construction fitting for residential and light commercial forced-air duct systems requiring a 4-inch round to 12-inch by 7-inch rectangular straight boot transition.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by a licensed HVAC technician or sheet metal contractor following local mechanical codes and SMACNA duct construction standards. Shut down the air handler or furnace and de-energize the system at the disconnect before beginning duct work. Secure the boot collar to the duct using sheet metal screws and seal all joints with UL 181-listed duct mastic or foil tape to prevent air leakage. Fasten the rectangular face flange to the register opening framing to ensure a secure, airtight fit before installing the grille or diffuser.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound Collar Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRectangular Face Dimensions\u003c\/strong\u003e: 12 x 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge\u003c\/strong\u003e: 30 GA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Galvanized Sheet Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoot Style\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SEAL-TITE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3172B-041207\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SEAL-TITE","offers":[{"title":"Default Title","offer_id":51345851384114,"sku":"3172B-041207","price":40.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554600.jpg?v=1782064596","url":"https:\/\/voomisupply.com\/products\/seal-tite-3172b-041207-straight-boot-4x12x7-in-30-gauge","provider":"Voomi Supply","version":"1.0","type":"link"}