

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The SOUTHWARK METAL 31_12X6 is a sheet metal duct register frame designed for return air applications in forced-air HVAC systems. Constructed from hot dip galvanized steel, this frame provides a corrosion-resistant mounting surface for return air grilles and registers. It installs into duct openings to create a clean, secure border that holds the register face in place. HVAC technicians and sheet metal contractors use this type of frame in both new construction and retrofit work where a finished return air opening is required at a wall, floor, or ceiling transition.
This frame is sized at 12 inches by 6 inches and is suited for residential and light commercial forced-air systems. It fits into standard duct rough openings of the corresponding dimension and is compatible with return air grille faces that match its frame footprint. The galvanized steel construction holds up in unconditioned spaces such as crawlspaces, attics, and wall cavities where moisture exposure is a concern. Sheet metal installers typically use this frame as part of a complete return air boot and grille assembly.
Designed as an OEM-style sheet metal duct register frame for return air grille installations in residential and light commercial forced-air HVAC ductwork systems.
Installation is typically performed by a licensed sheet metal contractor or HVAC technician. The air handling system should be powered down and the blower disabled before opening duct sections or inserting frames into the duct opening. Secure the frame according to SMACNA sheet metal duct construction standards using appropriate fasteners for the substrate. Do not restrict the return air opening with oversized framing or sealant applied across the face opening.
Thanks for subscribing!
This email has been registered!