Solid glass high vacuum stopcock with the NEW Chemglass improved constant pressure retention device. This unique retaining system incorporates a glass plug having an extended snelling which accepts a stainless steel spring and clip. The spring keeps constant tension on the plug at all times and is easily removed and attached. Plug is precision ground and hand-lapped with corresponding numbers on the barrel and plug. Each stopcock is supplied complete with a stainless steel spring and clip. Replacement retention kit consists of one spring and clip for the plug size listed.

Item Number	Item Description	PQ
CG-462-01	Stopcock, Straight Bore, Glass Plug, High Vacuum, 2mm Bore, 12/30 Plug Size, 8mm OD Sidearms	EACH
CG-462-02	Stopcock, Straight Bore, Glass Plug, High Vacuum, 4mm Bore, 17/40 Plug Size, 10mm OD Sidearms	EACH
CG-462-03	Stopcock, Straight Bore, Glass Plug, High Vacuum, 6mm Bore, 20/44 Plug Size, 12mm OD Sidearms	EACH