

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 LUKJAN DX821030 is a sheet metal duct transition fitting sized at 30 x 10 inches, used in forced-air HVAC duct systems to connect two duct sections of differing dimensions or to adapt ductwork runs at terminal or mid-system points. Transitions of this type are standard components in low-pressure supply and return air distribution systems. Licensed HVAC technicians and sheet metal contractors install this fitting during new construction or system modification work where a rectangular duct size change is required.
This transition is suited for residential and light commercial HVAC duct systems. It is used wherever a 30 x 10 inch rectangular duct profile must connect to an adjacent duct section or air handling component. Typical applications include main trunk-to-branch connections, air handler discharge outlets, and duct system extensions or retrofits requiring a size reduction or expansion fitting.
Designed as an OEM-style replacement or new-install fitting for rectangular duct systems requiring a 30 x 10 inch transition connection point in residential or light commercial forced-air HVAC applications.
Installation is performed by licensed HVAC technicians or qualified sheet metal contractors. The air handling system should be fully de-energized and the blower confirmed off before cutting into or modifying any duct section. Joints should be sealed with UL 181-rated mastic or foil tape per local mechanical code requirements. Follow applicable SMACNA duct construction standards and local building codes for support spacing and sealing.
Thanks for subscribing!
This email has been registered!