MKS Instruments 253A-2-50-2 Exhaust Throttle Control Valve 253A

mks control valve, 253a-1 40-1 (untested & sells as is, no warranty)

MKS 253A-13264-JSP027-93 Throttle Control Valve

mks 253a-4-100-2 Control Valve

MKS 253A-2-4CF-2 Throttle Valve 50.8 mm

MKS INSTRUMENTS 2253A-1-40-2 THROTTLE CONTROL VALVE 2253A1402 33.7mm USA 🎯

MKS 253B-20-40-2 Exhaust Throttle Valve0 .779 in. , Complete w/ Control Valve

MKS 253A-2-50-2 CONTROL VALVE 253A-2-50-2/SO21-84