Complete with control knob. Viton® O-rings on PTEF shaft are protected with two precision PTFE wipers (or as shown in the second picture, O-ring is inside shaft).The plug has a machined-in integral PTFE tip O-ring to make the primary...

Stainless steel retention kit for glass stopcocks of the size 16.2/56 with 4mm bore.

Complete with control knob and PTFE stem having three O-rings Description: 0-4mm vacuum plug and control knob Viton® O-ring at tip

Stainless steel retention kit for glass stopcocks of the size 17/40 with 4mm bore.

Complete with control knob and PTFE stem having three O-rings Description: 0-8mm vacuum plug and control knob Viton® O-ring at tip

With solid glass plug. Barrel and plug are precision ground, hand lapped with corresponding numbers on the barrel and plug. With constant pressure retention spring and clip.

Precision ground with corresponding numbers on the barrel and plug Lower vacuum chamber is evacuated via a separate 2mm hole in the plug which is not in the line of flow

Stainless steel retention kit for glass stopcocks of the size 12/30 with 2mm bore.

Complete with control knob. Viton® O-rings on PTEF shaft are protected with precision PTFE wipers. The plug has a machined-in integral PTEF tip O-ring to make the primary seal. This design provides for an excellent vacuum tight seal...

Complete with control knob. Viton® O-rings on PTEF shaft are protected with precision PTFE wipers. The plug has a machined-in integral PTEF tip O-ring to make the primary seal. This design provides for an excellent vacuum tight seal...

Complete with control knob and PTFE stem having three O-rings Description: 0-12mm vacuum plug and control knob Viton® O-ring at tip

Complete with control knob Viton® O-rings on PTEF shaft are protected with two precision Teflon® wipers (or as shown in the second picture O-ring is inside shaft) The plug has a machined-in integral PTFE tip O-ring to make the primary...