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The RECTORSEAL 2003CD-12IN is a two-cone ceiling supply air diffuser designed for HVAC systems using a 12-inch round duct connection. The two-cone face configuration delivers conditioned air in both downward and radial patterns, promoting even air distribution across occupied spaces. An integrated duct collar allows direct connection to a 12-inch round branch duct without additional fittings. Constructed from steel with a white finish, this diffuser suits ceiling installations in residential and light commercial applications. Licensed HVAC technicians and sheet metal contractors typically handle the installation as part of a supply air distribution system.
This diffuser is suited for ceiling supply applications in residential homes, apartments, and light commercial spaces where a 12-inch round duct terminates at the ceiling plane. The two-cone design handles both downward projection and horizontal radial throw, making it appropriate for standard ceiling heights in open-plan rooms, corridors, and similar spaces. The white finish blends with standard ceiling surfaces without requiring additional trim work.
Designed as an OEM-style ceiling supply diffuser for HVAC systems with a 12-inch round branch duct supply connection in residential and light commercial installations.
Installation should be performed by a qualified HVAC technician or sheet metal contractor following accepted industry practices and applicable mechanical codes. Shut down the air handling system and verify airflow has stopped before mounting or adjusting the diffuser. Secure the integrated collar to the round duct branch using appropriate sheet metal fasteners or approved tape per local code requirements. Do not obstruct the cone faces after installation, as reduced clearance will affect air throw and distribution performance.
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