{"product_id":"southwark-metal-84st2_16in-ductboard-collar-16-inch","title":"Southwark Metal 84ST2_16IN Ductboard Collar 16 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SOUTHWARK METAL 84ST2_16IN is a round sheet metal ductboard collar start fitting used to transition from a ductboard plenum or air handler cabinet into round duct runs. Constructed from hot dip galvanized steel, this collar provides a corrosion-resistant connection point rated for residential and light commercial forced-air HVAC systems. The 1.5-inch tab design locks into ductboard panels securely without requiring adhesive alone, giving installers a positive mechanical grip. At 16 inches in diameter, this collar is sized for high-volume trunk or main supply applications and is manufactured to ACCA and SMACNA standards.\u003c\/p\u003e\u003cp\u003eThis fitting is used by HVAC installers and sheet metal mechanics when building out ductboard duct systems from a central air handler or plenum box. It is appropriate for residential new construction, light commercial installations, and HVAC replacement projects where ductboard is the primary duct material. The collar is installed at the starting point of a round duct run branching off a ductboard plenum or trunk section.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHot dip galvanized steel construction for corrosion resistance in conditioned air environments\u003c\/li\u003e\n\u003cli\u003e1.5-inch tab secures fitting mechanically into ductboard panels\u003c\/li\u003e\n\u003cli\u003e16-inch diameter serves high-volume main supply or trunk duct connections\u003c\/li\u003e\n\u003cli\u003eRound profile compatible with standard round duct and fittings\u003c\/li\u003e\n\u003cli\u003eManufactured to ACCA and SMACNA applicable standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style sheet metal fitting for use with ductboard plenum and trunk systems in residential and light commercial forced-air HVAC installations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis collar is typically installed by licensed HVAC technicians or sheet metal mechanics during duct system fabrication or replacement. Power down the air handler and verify the system is de-energized before beginning ductwork modifications. Secure the tab fully into the ductboard panel and apply approved duct mastic or foil tape at the joint per SMACNA and local mechanical code requirements. Do not operate the system until all duct connections are properly sealed and supported.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Hot Dip Galvanized Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTab Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: 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: 84ST2_16IN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51283895681330,"sku":"84ST2_16IN","price":19.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309278064.jpg?v=1781062629","url":"https:\/\/voomisupply.com\/products\/southwark-metal-84st2_16in-ductboard-collar-16-inch","provider":"Voomi Supply","version":"1.0","type":"link"}