{"product_id":"southwark-metal-1210-18x12-end-cap-18-x-12-inches","title":"Southwark Metal 1210 18X12 End Cap 18 X 12 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWARK METAL 1210 18X12 is a sheet metal end cap sized at 18 x 12 inches, used to close off the open end of a rectangular HVAC duct section. End caps terminate duct runs where airflow is not required, preventing air bypass and maintaining system static pressure. This fitting is a standard component in forced-air heating and cooling systems and is installed by licensed HVAC technicians and sheet metal contractors during new construction and retrofit ductwork projects.\u003c\/p\u003e\n\u003cp\u003eThis end cap is suited for residential and light commercial rectangular duct systems. It fits the terminal end of an 18 x 12 inch rectangular duct trunk or branch, sealing the opening to prevent conditioned air loss. Installers typically secure and seal the cap with sheet metal screws and mastic or foil tape per applicable mechanical code requirements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCloses off 18 x 12 inch rectangular duct openings to stop air bypass\u003c\/li\u003e\n  \u003cli\u003eSheet metal construction for durability in forced-air duct systems\u003c\/li\u003e\n  \u003cli\u003eStandard rectangular fitting compatible with common duct fabrication practices\u003c\/li\u003e\n  \u003cli\u003eHelps maintain designed static pressure in the duct system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and standard fitting for 18 x 12 inch rectangular sheet metal duct systems in residential and light commercial forced-air HVAC applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or sheet metal contractors. Power down the air handling equipment before working on any duct section. Fasten the end cap securely with sheet metal screws and seal all edges with mastic sealant or UL 181-listed foil tape to meet energy code and mechanical code requirements. Do not leave duct terminations unsealed, as air leakage will reduce system efficiency and pressure balance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: End Cap\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Shape\u003c\/strong\u003e: Rectangular\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: 1210 18X12\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51283985400114,"sku":"1210 18X12","price":21.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277197.png?v=1781065096","url":"https:\/\/voomisupply.com\/products\/southwark-metal-1210-18x12-end-cap-18-x-12-inches","provider":"Voomi Supply","version":"1.0","type":"link"}