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The SEAL-TITE 81243-20252510 is a return air package designed to support ducted HVAC systems where sealed, properly sized return air pathways are critical to system performance and indoor air quality. This package includes two duct components sized at 20 x 25 inches and 25 x 10 inches, providing the materials needed to complete or extend a return air assembly in a single-family residential or light-commercial setting. Licensed HVAC technicians and sheet metal contractors install return air packages during new construction, system replacement, or duct retrofit projects where code-compliant airflow management is required.
This return air package is suited for ducted forced-air systems, including gas furnace and air handler installations where a dedicated return air plenum or drop is required. The two included component sizes, 20 x 25 inches and 25 x 10 inches, address common residential duct configurations. Contractors working on duct layout, air balancing, or system retrofits will find this package useful for building out return-side ductwork in standard framed wall or floor-joist cavities.
Designed as an OEM-style return air duct package for use with residential and light-commercial forced-air HVAC systems requiring standard return duct sizing.
Installation should be performed by a licensed HVAC technician or sheet metal contractor in accordance with local mechanical codes and ACCA Manual D duct design guidelines. Power down the air handler or furnace at the disconnect and thermostat before beginning any duct work. Seal all joints with UL 181-listed mastic or metal-backed tape to maintain system efficiency and meet code requirements. Do not compress or restrict the return air opening, as inadequate return airflow will reduce system performance and can cause heat exchanger or coil damage over time.
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