333-071 | Replacement Diaphragm, No. 4 Damper Act, Sheet Metal Cylinder Housing, 5 pkg | Siemens Additional Information_0.94 in Body Size; 1.34 x 1.12 in Center to End; 0.035 in Tube Wall; 0.200 lb Weight 3/4 FNPT VEP THREAD LOCK

3/4 FNPT VEP THREAD LOCK QUICK COUPLER

12X10 PVC REDUCING TEE SOCKET CL100

2 PVC FEMALE ADAPTER SOCXSS/FPT SCH80

2-1/2 PVC TRUE UNION INDUSTRIAL 3 WAY T/PT HORIZONTAL FLANGED FKM

You can contact Johnson Controls for a new VFD or replacement parts in case of failure or poor performance

333-071 | Replacement Diaphragm, No. 4 Damper Act, Sheet Metal Cylinder Housing, 5 pkg | Siemens Additional Information_0.94 in Body Size; 1.34 x 1.12 in Center to End; 0.035 in Tube Wall; 0.200 lb Weight 3/4 FNPT VEP THREAD LOCKReplacement Diaphragm, No. 4 Damper Act, Sheet Metal Cylinder Housing, 5 pkg Resources Datasheet(Powers Controls No. 4 Pneumatic Damper. Technical Instructions)Assortment System Descriptions(Powers Pneumatic Controls. Quick Reference Guide)Installation instruction(Damper Diaphragm Replacement Installation Instructions) Installation Instructions More Info ^^This Diaphragm is a replacement for 331 No. 4 pneumatic damper actuators with sheet metal