{"product_id":"southwark-metal-105020-beaded-end-duct-collar-20-inch","title":"Southwark Metal 105020 Beaded End Duct Collar 20 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWARK METAL 105020 is a beaded end (B.E.) duct collar designed for round duct connections in forced-air HVAC systems. The beaded end profile creates a positive stop that helps seat flex duct or rigid round duct securely, reducing the chance of slippage during installation. At 20 inches in diameter, this collar suits larger trunk-to-branch or plenum takeoff connections commonly found in commercial light construction and larger residential applications. HVAC sheet metal installers and duct fabricators are the primary trades working with this fitting.\u003c\/p\u003e\n\u003cp\u003eThis collar is used where a round duct branch connects to a plenum, air handler cabinet, or trunk line. The 20-inch size is typical in commercial rooftop unit installations, large residential forced-air systems, and custom duct fabrication shops that require a pre-formed collar fitting. It is installed as part of a supply or return air distribution system to maintain airflow integrity at the connection point.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBeaded end profile provides a positive stop for secure duct seating\u003c\/li\u003e\n  \u003cli\u003e20-inch diameter suits larger commercial and residential forced-air duct systems\u003c\/li\u003e\n  \u003cli\u003ePre-formed collar design speeds up field installation and reduces fabrication time\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard round flex duct and rigid spiral duct connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style sheet metal fitting for use in round duct distribution systems requiring a 20-inch beaded end collar connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed HVAC technician or sheet metal contractor. Power down the air handling unit and confirm the system is de-energized before making any duct connections. Secure the collar with sheet metal screws and seal all joints with UL-listed foil tape or mastic sealant in accordance with local mechanical codes and SMACNA ductwork standards. Do not rely on tape alone as a primary mechanical fastener.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 20 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Beaded End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Duct Collar\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: 105020\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51284014334258,"sku":"105020","price":33.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277114.webp?v=1781066071","url":"https:\/\/voomisupply.com\/products\/southwark-metal-105020-beaded-end-duct-collar-20-inch","provider":"Voomi Supply","version":"1.0","type":"link"}