20X6 ND-RSD NO | Rectangular Damper | 20X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls Additional Information_1-3/8 in Stem Length; Celcon Plug; 1/4-18 Thread Size; 0.420 lb Weight 8X6 PVC REDUCING COUPLING SOCKET

8X6 PVC REDUCING COUPLING SOCKET SCH40

1-1/4 PVC CL UTILITY SPR CK VALVE SOCKET EPDM

20X14 CPVC REDUCING TEE SOCKET SCH80

2-1/2 X 3/4 BLK MALL RED TEE

or differential pressure

20X6 ND-RSD NO | Rectangular Damper | 20X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls Additional Information_1-3/8 in Stem Length; Celcon Plug; 1/4-18 Thread Size; 0.420 lb Weight 8X6 PVC REDUCING COUPLING SOCKETACTUATORS ARE INSTALLED ON THE 2ND DIMENSION, PHOTO IS GENERIC AND MAY NOT REPRESENT THE PART BEING ORDERED Rectangular Damper 20X6 ND MOTORIZED DAMPER SPRING RETURN NORMALLY OPEN Resources Datasheet ^^This damper is 20" by 6". The motor lever is installed on the 6" side. Full dimensional specifications are in the datasheet below.