Rossi u-channels allow for our hardware to be used with any size damper blade. Whether large rectangular blades or round blades you’ve cut from scrap metal in house in your duct shop, you can easily attach them to a square bar for use with all Rossi regulators and bushings.
Attach rectangular blades to Rossi components
Attach larger diameter blades to Rossi components
Available for 3/8″ or 1/2″ square rod