{"product_id":"seal-tite-301-07-airtite-takeoff-7-inch-round-duct","title":"Seal-tite 301-07 Airtite Takeoff 7 Inch Round Duct","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SEAL-TITE 301-07 is a 7-inch airtite takeoff fitting designed for round duct systems in residential and commercial HVAC installations. Constructed from heavy-duty galvanized steel, it features a precisely formed collar that creates an airtight seal at the branch connection point, minimizing air leakage and reducing energy loss across the system. The galvanized finish resists corrosion in typical mechanical room and plenum environments. Licensed HVAC technicians install this fitting during trunk-and-branch duct layout or when adding a branch run to an existing supply trunk.\u003c\/p\u003e\u003cp\u003eThe 301-07 is suited for 7-inch round duct branch takeoffs on forced-air supply or return systems. It fits into both new-construction duct layout and retrofit work where a reliable, low-leakage branch connection is required. The airtite collar design helps systems meet duct leakage requirements common in energy code compliance testing, making it a practical choice for technicians working under Title 24, IECC, or similar energy codes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e7-inch collar sized for standard round duct and flexible duct connections\u003c\/li\u003e\n\u003cli\u003eHeavy-duty galvanized steel construction for corrosion resistance and long service life\u003c\/li\u003e\n\u003cli\u003ePrecisely formed airtite collar reduces air leakage at the branch takeoff point\u003c\/li\u003e\n\u003cli\u003eSupports airflow efficiency and helps meet duct leakage compliance targets\u003c\/li\u003e\n\u003cli\u003eSuited for both residential and commercial forced-air duct systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and new-installation fitting for 7-inch round duct branch takeoff applications in residential and commercial forced-air HVAC systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by licensed HVAC technicians during duct fabrication or retrofit branch work. Power down the air handling unit and verify the system is depressurized before cutting into an existing trunk. Secure the takeoff collar to the trunk with sheet metal screws and seal all joints with UL 181-rated mastic or foil tape to maintain airtight integrity. Follow local mechanical codes and SMACNA duct construction standards for fastener spacing and sealing requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollar Diameter\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Galvanized Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Round Duct Branch Takeoff\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: 301-07\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SEAL-TITE","offers":[{"title":"Default Title","offer_id":51343886614834,"sku":"301-07","price":20.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554474.jpg?v=1782025358","url":"https:\/\/voomisupply.com\/products\/seal-tite-301-07-airtite-takeoff-7-inch-round-duct","provider":"Voomi Supply","version":"1.0","type":"link"}