{"product_id":"southwark-metal-21_24x12-trunk-duct-end-cap-24x12-in","title":"Southwark Metal 21_24X12 Trunk Duct End Cap 24x12 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWARK METAL 21_24X12 is a hot-dip galvanized steel sheet metal end cap designed to close off the open end of a rectangular trunk duct. Sized at 24 inches by 12 inches, it terminates airflow at the terminal end of a trunk duct run, preventing air loss and maintaining system static pressure. Fabricated from hot-dip galvanized steel, it resists corrosion in the typical attic, crawlspace, and mechanical room environments where trunk duct systems operate. HVAC sheet metal installers and duct fabricators are the primary trades working with this component.\u003c\/p\u003e\n\u003cp\u003eThis end cap is used in residential and light commercial forced-air HVAC systems where rectangular sheet metal trunk duct distribution is employed. It fits the terminal end of a 24-inch by 12-inch trunk duct section, capping the run cleanly and maintaining duct integrity. It is applicable in new construction duct fabrication as well as retrofit or replacement work where an existing trunk duct end cap is damaged or missing.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHot-dip galvanized steel construction for corrosion resistance in varied installation environments\u003c\/li\u003e\n  \u003cli\u003e24 inches by 12 inches sizing fits standard trunk duct sections of matching dimensions\u003c\/li\u003e\n  \u003cli\u003eTrunk-type designation for rectangular duct system termination\u003c\/li\u003e\n  \u003cli\u003eFabricated to ACCA and SMACNA applicable standards for duct construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style sheet metal end cap for rectangular trunk duct systems measuring 24 inches by 12 inches, fabricated in accordance with ACCA and SMACNA duct construction standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSheet metal duct end caps are installed by licensed HVAC technicians or sheet metal workers following SMACNA duct construction guidelines. Shut down the air handling unit and confirm the system is de-energized before working inside the duct system. The end cap should be secured and sealed with appropriate duct sealant or mastic per SMACNA standards to prevent air leakage at the termination point. Sheet metal screws and hand seamers are standard tools for this type of work.\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: 24 inches x 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Trunk\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: 21_24X12\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51284003881266,"sku":"21_24X12","price":21.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277186.jpg?v=1781065722","url":"https:\/\/voomisupply.com\/products\/southwark-metal-21_24x12-trunk-duct-end-cap-24x12-in","provider":"Voomi Supply","version":"1.0","type":"link"}