Stopcocks

Thermo Scientific™ Nalgene™ Three-way Stopcock Available on GSA/VA Contract for Federal Government customers only.

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.

Thermo Scientific™ Nalgene™ Stopcocks Available on GSA/VA Contract for Federal Government customers only.

Develop in-house fluid transfer systems for accurate filling or dispensing. These stopcocks provide reliable, accurate liquid flow control.

PYREX™ Straight Bore Stopcock with PTFE Product Standard Stopper Plug Available on GSA/VA Contract for Federal Government customers only.

plug stopcock taper PTFE plug fits into a microfinish barrel

Bel-Art™ SP Scienceware™ Stopcocks Available on GSA/VA Contract for Federal Government customers only.

With a removable, leak-proof plug made of chemical-resistant, non-stick PTFE with barbed tubulations that accept 1/4 to 3/8 in. I.D. tubing

Promega™ One-Way Luer Lok™ Stopcocks

Allows each port to be controlled individually

Bel-Art™ SP Scienceware™ Replacement Stopcocks

Polypropylene body has Teflon™ PTFE plug, washer and bright red handle

Bel-Art™ SP Scienceware™ Two-Piece Stopcocks

Two-piece design snaps together forming a tight seal, and the free-turning key needs no lubrication

DWK Life Sciences Kimble™ Stopcock Plugs

Parts: PTFE nut, rubber washer and PTFE washer

Corning™ Rotaflo™ Stopcocks Available on GSA/VA Contract for Federal Government customers only.

Combined PTFE and borosilicate glass forms a leak- and freeze-resistant seal

DWK Life Sciences Kimble™ Straight Bore Stopcock without plug, 4mm

Straight-bore, sandblasted stopcock with a 1:5 taper.

DWK Life Sciences Kimble™ Replacement Stopcock

Replacement for 17062F Series Burets

DWK Life Sciences Kimble™ Kontes™ Straight Bore Stopcock with PTFE Plug

The more exaggerated taper of this stopcock permits easier use at higher-than-ambient temperatures. Available in size 2 or 4.

Troemner™ Regular Hosecock, Stainless Steel

Deliver accurate regulation or interruption of fluid flow

Troemner™ Regular Hosecocks with Foot

Hosecock with foot offers easy one-hand operation. Convex bearing surfaces and rounded edges protect tubing.

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