Stopcocks
Stopcocks
Masterflex™ 4-way Stopcock
Use these stopcocks for a variety of applications. Cole-Parmer™ 4-way Stopcocks feature a PC body and an HDPE stem.
Thermo Scientific™ Nalgene™ Stopcocks
Develop in-house fluid transfer systems for accurate filling or dispensing. These stopcocks provide reliable, accurate liquid flow control.
Masterflex™ Stopcocks with Luer Connections
Regulate flow without any leaking using these fittings. Cole-Parmer™ Stopcocks with Luer Connections are available with either a male luer lock or a male luer slip.
BRAND™ Needle-Valve Stopcock and Spare Spindle
Needle-Valve Stopcock and Spare Spindle constructed of PTFE with retention device.
Rotaflo™ Borosilicate Glass Stopcocks for Aspirator
Stopcock for use with aspirator bottles 1565: series with Rotaflo™ PTFE key
Thermo Scientific™ Nalgene™ Three-way Stopcock
Experience in-house fluid transfer system flexibility with this three-way stopcock, arranged in a T-shape to simply any two — or all three — arms of the stopcock with ease.
Promotions are available
BRAND™ Stopcock For Aspirator Bottle
Fits all sizes
Thermo Scientific™ Nalgene Stopcock Assembly for Acrylic Burets
For use with 25 mL Acrylic Nalgene Break-Resistant Burets.
Cowie Technology™ PTFE T-Type Stopcocks
Cowie Technology™ PTFE T-Type Stopcocks feature a pure PTFE body and plug and combine all the desirable properties of the Ultimate Laboratory Stopcock.
Fisherbrand™ PTFE Burette Stopckcock, Straight Through Type
Fisherbrand™ PTFE Burette Stopckcock, Straight Through Type supplied with 8mm diameter sidearm in borosilicate glass, bore is 2mm.
BRAND™ T-Bore Stopcock
T-Bore Stopcock is constructed of PTFE and includes a nozzle.
Pyrex™ Borosilicate Glass Aspirator Stopcock with Ground Cone
Inserts into the ground glass side-socket of an aspirator botte. Pyrex™ Borosilicate Glass Aspirator Stopcock with Ground Cone provides a leakproof seal.