{"product_id":"seal-tite-1210-1812-duct-heat-end-cap-18x12","title":"Seal-tite 1210-1812 Duct Heat End Cap 18x12","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SEAL-TITE 1210-1812 is a duct heat end cap sized at 18 by 12 inches, designed to terminate rectangular duct runs in forced-air HVAC systems. End caps close off the open end of a duct section, preventing conditioned air from bypassing the intended distribution path. This component is a standard part of sheet metal ductwork assemblies and is installed by HVAC technicians during new construction, duct modification, or system retrofits. Proper termination at duct ends maintains system static pressure and overall distribution efficiency.\u003c\/p\u003e\n\u003cp\u003eThis end cap fits rectangular duct measuring 18 by 12 inches and is suited for residential and light commercial forced-air heating and cooling applications. It is typically installed at a dead-end duct run, at a plenum takeoff that is being capped off, or during duct reconfiguration where an outlet is no longer needed. HVAC sheet metal installers and service technicians are the primary trades working with this component.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 18 by 12 inch rectangular duct openings\u003c\/li\u003e\n  \u003cli\u003eTerminates duct runs cleanly to prevent air bypass and pressure loss\u003c\/li\u003e\n  \u003cli\u003eStandard end cap profile for compatibility with common rectangular duct assemblies\u003c\/li\u003e\n  \u003cli\u003eSuitable for heat duct applications in forced-air HVAC systems\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 by 12 inch rectangular duct systems used in residential and light commercial forced-air heating and cooling installations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or qualified sheet metal workers. Shut down the air handling unit and confirm the system is de-energized before modifying any duct section. Secure the end cap to the duct with appropriate sheet metal screws and seal all joints with listed duct tape or mastic sealant in accordance with local mechanical codes and SMACNA guidelines. Do not leave duct joints unsealed, as air leakage at terminations reduces system efficiency.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Size\u003c\/strong\u003e: 18 x 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Duct Heat End Cap\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: SEAL-TITE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1210-1812\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SEAL-TITE","offers":[{"title":"Default Title","offer_id":51345336271154,"sku":"1210-1812","price":30.76,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554990.jpg?v=1782055105","url":"https:\/\/voomisupply.com\/products\/seal-tite-1210-1812-duct-heat-end-cap-18x12","provider":"Voomi Supply","version":"1.0","type":"link"}