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Supplier: VWR International
Description: VWR® Burettes are manufactured from ASTM E 438, Type 1, Class A Borosilicate 3.3 heat-resistant glass.
Supplier: Corning
Description: These are replacement PTFE stopcock plug assemblies with various diameter bores for PYREX® straight bore PTFE stopcocks.
Supplier: Bel-Art Products, a Part of SP
Description: Molded polyethylene plastic parts snap together forming a tight seal, and the free-turning key requires no lubrication.

Supplier: Dynalon
Description: Miniature stockpocks allow for easy turning of key which requires no lubricant, thus eliminating blockage of the bores with grease.

Supplier: Wards
Description: Ungraduated Gilson separatory funnels with ground cones, plastic stoppers, and PTFE key stopcocks, made of borosilicate 3.3 glass.

Catalog Number: (470344-794)
Supplier: Wards
Description: Pressure-equalizing dropping funnel made of borosilicate glass with a 100 ml capacity, featuring a 19/26 plastic stopper and PTFE key stopcock, allowing for efficient and controlled addition of liquids in various laboratory applications.


Supplier: Wards
Description: All-glass stopcock for smooth motion and flow adjustment.

Supplier: Wards
Description: Separatory funnels with ground cones, plastic stoppers, and glass key stopcocks, made of borosilicate 3.3 glass.

Supplier: Wards
Description: Ungraduated Gilson separatory funnels with ground cones, plastic stoppers, and glass key stopcocks, made of borosilicate 3.3 glass.

Catalog Number: (470202-530)
Supplier: Dynalon
Description: <B>Inexpensive, break-resistant burets ideal for school use.</B><BR>Each clear acrylic buret is furnished with a polymethylpentene stopcock body, polyethylene stopcock key, nitrile rubber sealing rings, and a polypropylene tip. The burets are individually calibrated to conform to B.S. 846 Class B.<BR>Designed for use with acids and bases; exposure to alcohol and organic solvents should be avoided.


Supplier: Wards
Description: PTFE key stopcock offers superior chemical resistance and low therma.

Supplier: Wards
Description: Lightweight and durable.

Supplier: Wards
Description: Polypropylene separatory funnels have a screw cap and key stopcock fitted with a self-lubricating PTFE plug.

Catalog Number: (470344-504)
Supplier: Wards
Description: Graduated Squibb separating funnel made of borosilicate glass with a 500 ml capacity, equipped with a 24/29 plastic stopper and glass key stopcock, enabling precise separation and extraction techniques in laboratory experiments.


Catalog Number: (470344-470)
Supplier: Wards
Description: Pear-shaped separating funnel made of borosilicate glass with a 1000 ml capacity, featuring pressure equalizing capabilities, a 29/32 plastic stopper, and a PTFE key stopcock, providing optimal control and efficient liquid separation.


Supplier: VWR International
Description: These stopcocks are ideal for use with liquids and gases under low pressure (operating pressure 7.0psi) or low vacuum.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
You must log in to order restricted items. We request that you provide the required business documentation to purchase this product for the first time.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • issued document with your organization's Federal Tax ID Number
  • Government issued document with your organization's Resale Tax ID Number
  • Any other Government ID that includes the business name and address


VWR will not lift restrictions for residential shipping addresses.

-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is currently unavailable but limited stock may be available in our extended warehouse network. Please call 1-800-932-5000 and a VWR Customer Service Representative will help you.
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