{"product_id":"southwark-metal-21_18x10-trunk-duct-end-cap-18x10-in","title":"Southwark Metal 21_18X10 Trunk Duct End Cap 18x10 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWARK METAL 21_18X10 is a hot-dip galvanized steel sheet metal end cap designed to close off the open end of a rectangular trunk duct measuring 18 inches by 10 inches. It provides a secure, airtight termination point for HVAC trunk duct runs, preventing conditioned air from escaping at the duct terminus. Fabricated from hot-dip galvanized steel, this end cap resists corrosion and meets the durability demands of both new construction and retrofit duct work. HVAC sheet metal contractors and duct fabricators are the primary installers of this component.\u003c\/p\u003e\n\u003cp\u003eThis end cap is suited for residential and light commercial forced-air HVAC systems where rectangular trunk duct runs require a sealed termination. It is appropriate for use in supply or return air trunk configurations where the 18-inch by 10-inch duct opening must be permanently capped. Its fabrication conforms to ACCA and SMACNA standards, making it a code-consistent choice for duct system installations governed by those guidelines.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHot-dip galvanized steel construction for corrosion resistance in HVAC duct environments\u003c\/li\u003e\n  \u003cli\u003eSized for 18-inch by 10-inch rectangular trunk duct openings\u003c\/li\u003e\n  \u003cli\u003eTrunk-type end cap designed for permanent duct termination\u003c\/li\u003e\n  \u003cli\u003eFabricated to ACCA and SMACNA applicable standards\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard sheet metal duct assembly and installation practices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style sheet metal component for use with 18-inch by 10-inch rectangular trunk duct systems fabricated and installed in accordance with ACCA and SMACNA standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC contractors or qualified sheet metal mechanics. The air handler or furnace should be shut down and the system de-energized before capping any duct section. The end cap is typically secured using sheet metal screws and sealed with UL 181-rated duct sealant or mastic to ensure an airtight connection. Follow applicable SMACNA duct construction standards and local mechanical codes for fastener spacing and sealing requirements.\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\u003eDuct Size\u003c\/strong\u003e: 18 inches x 10 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Trunk End Cap\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_18X10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51283976618290,"sku":"21_18X10","price":17.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277200.jpg?v=1781064796","url":"https:\/\/voomisupply.com\/products\/southwark-metal-21_18x10-trunk-duct-end-cap-18x10-in","provider":"Voomi Supply","version":"1.0","type":"link"}