4 RSD | 4 Inch Round Motorized Spring Return Damper | EWC Controls Size_3X3/4X3 2 PVC 90 ELBOW SOCXSR/FPT

2 PVC 90 ELBOW SOCXSR/FPT SCH80

1/2 CPVC TRUE UNION 2000 STANDARD BALL VALVE FLANGED FKM

^^[Part# EFX24-SR-S N4 is the same as EFX24SRSN4]^^

2 PP ROUND HANDLE 3-SLOT BALL VALVE

18X4 PVC REDUCING TEE SOCKET SCH80 FABRICATED

4 RSD | 4 Inch Round Motorized Spring Return Damper | EWC Controls Size_3X3/4X3 2 PVC 90 ELBOW SOCXSR/FPT4 Inch Round Motorized Spring Return Damper Model RSD is a round single blade damper constructed from heavy (24) gauge galvanized steel. The 24 volt motor actuator is direct coupled to the drive shaft. It is a power closed spring open action. (standard). The damper can be field reversed to a power open spring closed action. The RSD has a double layered blade design with an integrated Poron foam gasket to provide a seal when the damper is in the closed