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With a ball valve, stopcocks control the flow of liquids and low pressure gases in delivery systems. Fitting into corresponding female joint parts, the plugs come in any number of bore hole arrangements. Often featuring tapered ends, a wider tube diameter range is accommodated for to increase working flexibility. The high quality, leak proof stopcocks meet vacuum applications and come in ground glass styles or plastic to eliminate the need of greasing.

With a ball valve, stopcocks control the flow of liquids and low pressure gases in delivery systems. Fitting into corresponding female joint parts, the plugs come in any number of bore hole arrangements. Often featuring tapered ends, a wider tube diameter range is accommodated for to increase working flexibility. The high quality, leak proof stopcocks meet vacuum applications and come in ground glass styles or plastic to eliminate the need of greasing.


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Description: Polypropylene plastic body has Teflon® PTFE plug, washer and bright red handle.
Catalog Number: 59097-102
Supplier: Bel-Art Products


Description: With a removable, leak-proof plug made of chemical-resistant, non-stick Teflon® PTFE, these 2- and 3-way polypropylene plastic stopcocks have barbed tubulations that accep 6.4 to 9.5 mm (¼ to ⅜”") I.D.tubing.
Catalog Number: 47750-042
Supplier: Bel-Art Products


Description: Metering valve, with 1:5 PTFE straight bore plug, provides fine control of rate of flow
Catalog Number: 89062-346
Supplier: Ace Glass

Small Business Enterprise Product available on GSA Advantage®


Description: Three-way stopcock with two female Luers to one male Luer-lock
Catalog Number: KT420163-4503
Supplier: DWK Life Sciences (KIMBLE)

Description: The 2 mm through 6 mm bore sizes are supplied complete with the listed size metal retaining clip CG-423. The 8 mm and 10 mm bore sizes are supplied with a #29 and #34 CG-145 Keck clip respectively.
Catalog Number: 80074-044
Supplier: Chemglass

Small Business Enterprise


Description: Similar to the CG-400 series, but with one arm of the stopcock being of a larger diameter.
Catalog Number: 80074-070
Supplier: Chemglass

Small Business Enterprise


Description: Similar to the CG-446 series, but with the top oblique stem being made of 2 mm I.D. capillary tubing.
Catalog Number: 80074-258
Supplier: Chemglass

Small Business Enterprise


Description: SAI's stopcocks maximize the ability to control the delivery path of fluids.
Catalog Number: 89134-220
Supplier: SAI Infusion Technologies


Description: High vacuum stopcock with oblique bore glass plug.
Catalog Number: 60005-200
Supplier: Kemtech America

Small Business Enterprise Minority or Woman-Owned Business Enterprise


Description: Similar to the CG-424 series, but with one arm of the stopcock being of a larger diameter.
Catalog Number: 80074-182
Supplier: Chemglass

Small Business Enterprise


Description: High vacuum stopcock with offset bore hollow glass plug.
Catalog Number: 60005-204
Supplier: Kemtech America

Small Business Enterprise Minority or Woman-Owned Business Enterprise


Description: Solid plug, oblique bore stopcock is precision ground with corresponding numbers on barrel and plug.
Catalog Number: 80074-318
Supplier: Chemglass

Small Business Enterprise


Description: Glass plug ONLY.
Catalog Number: 60005-184
Supplier: Kemtech America

Small Business Enterprise Minority or Woman-Owned Business Enterprise


Description: A 1:5 taper PTFE stopcock with three stems sealed 90° apart. The PTFE plug has a 'T' shaped bore to connect any two, or all three stems.
Catalog Number: 80074-210
Supplier: Chemglass

Small Business Enterprise


Description: High vacuum stopcock with 90° angle bore hollow glass plug
Catalog Number: 60005-210
Supplier: Kemtech America

Small Business Enterprise Minority or Woman-Owned Business Enterprise


Description: Designed to provide an excellent vacuum tight seal without exposing any material other than Teflon® to chemicals.
Catalog Number: 60004-054
Supplier: Kemtech America

Small Business Enterprise Minority or Woman-Owned Business Enterprise


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