12X18 ND-RSD NC | Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls Contruction_Standard FKM O-ring 3/4X1 PVC REDUCING FEMALE ADAPTER

3/4X1 PVC REDUCING FEMALE ADAPTER SOCXSRFPT SCH80

16X12 PVC STUB SADDLE SOCKET SCH80 N

Fastened with appropriate fittings and lock nuts

18X6 PVC REDUCING COUPLING SOCKET DUCT

12X18 ND-RSD NC | Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls Contruction_Standard FKM O-ring 3/4X1 PVC REDUCING FEMALE ADAPTERACTUATORS ARE INSTALLED ON THE 2ND DIMENSION, PHOTO IS GENERIC AND MAY NOT REPRESENT THE PART BEING ORDERED Rectangular Damper 12X18 ND MOTORIZED DAMPER SPRING RETURN NORMALLY CLOSED Resources Datasheet ^^This damper is 12" by 18". The motor lever is installed on the 18" side. Full dimensional specifications are in the datasheet below.