C-Box HVAC Plenum Ceiling Box 12 x 12 x 8 Round-Connects to Vent Register Diffuser
- Our C-Boxes are built with a 1/2″ flange all the way around the square portion which can be used for attachment or folded over..
- We also have a full line of ceiling registers and hvac fittings..
- The best way to regulate air flow is to install a manual volume damper in the duct run..
- Connects a 8″ Round Duct to a 12 x 12 Diffuser or Register Vent..
- Call us with your hole size and duct size so we can help (866) 309-9899.