{"product_id":"southwark-metal-20_30x10-trunk-duct-starting-collar-30x10","title":"Southwark Metal 20_30X10 Trunk Duct Starting Collar 30x10","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWARK METAL 20_30X10 is a straight starting collar designed for sheet metal trunk duct systems in forced-air HVAC applications. Fabricated from hot dip galvanized steel, this collar serves as the connection point where a branch duct or fitting transitions off a main trunk duct. It measures 30 inches by 10 inches and is built to the dimensional and performance standards set by ACCA and SMACNA. HVAC sheet metal installers and mechanical contractors use this fitting during new construction and retrofit ductwork fabrication to establish clean, sealed takeoff connections from the trunk line.\u003c\/p\u003e\n\u003cp\u003eThis starting collar is suited for residential and light commercial forced-air duct systems where a rectangular trunk duct requires a direct, straight collar takeoff. The straight body pattern simplifies alignment in tight plenum or mechanical room installations. It is commonly installed by sheet metal mechanics and HVAC contractors working on supply or return trunk duct assemblies that require a secure, properly sized starting point for downstream branch runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHot dip galvanized steel construction provides corrosion resistance for long-term duct system performance\u003c\/li\u003e\n  \u003cli\u003eStraight body pattern allows direct, aligned connection off the trunk duct face\u003c\/li\u003e\n  \u003cli\u003e30 inches by 10 inches size suits standard trunk duct fabrication layouts\u003c\/li\u003e\n  \u003cli\u003eMeets ACCA and SMACNA applicable standards for sheet metal ductwork fittings\u003c\/li\u003e\n  \u003cli\u003eStarting collar design provides a clean, defined takeoff point on the main trunk\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style sheet metal fitting for rectangular trunk duct systems requiring a straight starting collar takeoff in forced-air HVAC installations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed sheet metal mechanic or HVAC contractor in accordance with SMACNA ductwork installation standards. Secure all duct connections with approved fasteners and seal joints with mastic or listed duct tape per applicable mechanical codes before system startup. Verify trunk duct dimensions and alignment before fastening the collar in place. Always de-energize the air handling system before working on connected ductwork.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Hot Dip Galvanized Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 30 inches x 10 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Pattern\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Starting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplicable Standards\u003c\/strong\u003e: ACCA, SMACNA\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: SOUTHWARK METAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20_30X10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51284155433266,"sku":"20_30X10","price":54.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277173.jpg?v=1781069982","url":"https:\/\/voomisupply.com\/products\/southwark-metal-20_30x10-trunk-duct-starting-collar-30x10","provider":"Voomi Supply","version":"1.0","type":"link"}