{"product_id":"southwark-metal-21_14x8-trunk-duct-end-cap-14x8","title":"Southwark Metal 21_14X8 Trunk Duct End Cap 14x8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWARK METAL 21_14X8 is a sheet metal trunk duct end cap sized at 14 inches by 8 inches, fabricated from hot-dip galvanized steel. It is used to close off the open end of a rectangular trunk duct in forced-air HVAC distribution systems. The galvanized steel construction resists corrosion and holds up to the temperature swings and airflow pressures common in residential and light commercial ductwork. HVAC sheet metal mechanics and duct installers are the primary trades who specify and install this fitting. It meets applicable ACCA and SMACNA fabrication standards, making it suitable for code-compliant duct systems.\u003c\/p\u003e\n\u003cp\u003eThis end cap is designed for trunk-style rectangular duct runs where a terminal closure is needed — typically at the far end of a supply or return trunk that terminates inside a mechanical room, attic, crawlspace, or conditioned space. The 14-inch by 8-inch profile fits standard rectangular trunk duct of matching dimensions. It is commonly installed during new construction duct rough-in or during system modification when a branch is capped off or a trunk is shortened.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHot-dip galvanized steel construction for corrosion resistance in humid or unconditioned spaces\u003c\/li\u003e\n  \u003cli\u003e14 inches by 8 inches nominal size fits standard rectangular trunk duct openings\u003c\/li\u003e\n  \u003cli\u003eTrunk-type profile for secure, flush closure of rectangular duct ends\u003c\/li\u003e\n  \u003cli\u003eFabricated to ACCA and SMACNA applicable standards for use in code-compliant installations\u003c\/li\u003e\n  \u003cli\u003eEliminates air bypass at duct terminations, helping maintain system static pressure balance\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 with standard 14 inch by 8 inch rectangular trunk duct sections in residential and light commercial forced-air HVAC systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or qualified sheet metal mechanics. Power down the air handling unit and verify the system is de-energized before working inside or near the duct system. The end cap is typically fastened with sheet metal screws and sealed with UL 181-listed duct sealant or mastic per local mechanical code and SMACNA guidelines. Do not leave duct ends unsealed, as air leakage at terminations reduces system efficiency and can create pressure imbalances throughout the trunk.\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: 14 inches x 8 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_14X8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51284104020274,"sku":"21_14X8","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277212.jpg?v=1781068631","url":"https:\/\/voomisupply.com\/products\/southwark-metal-21_14x8-trunk-duct-end-cap-14x8","provider":"Voomi Supply","version":"1.0","type":"link"}