Slot diffusers

1900 series Linear Slot Diffuser Contents - 4 slot linear diffuser dimensions 9475 34 Inch Linear Slot Diffusers ; 10 1 SLOT - 34 Linear Slot Diffuser w Damper ( RE9475-1SLOTx10-D ; 10 4 SLOT 4 diamond blues slot 75 - 34 slot; 10

4 slot mailbox H A 25 B 25 CONCEALED CEILING TYPE C ROUND COLLAR FOR FLEXIBLE DUCT ROUND COLLAR SIZE 1 SLOT 2 SLOT 3 SLOT 4 SLOT H A BCH A B C H