For test tubes and flasks

Available in natural (clear) or choice of four colors

For use with Buchner funnels of different sizes.

Available in a variety of sizes ranging from 000 through 16

Available in a variety of sizes ranging from 000 through 16

One hole rubber stopper

Hollow stopper fits into the neck of the glassware apparatus. Series 774261 may be used at up to 125°C for up to 8 hours.

Flexible fins on cap allow for tight fit that will not damage the cuvette.

Closures for plastic culture tubes.

Assorted sizes 00 to 8

Designed to fit 1.2mL cluster tubes and cluster tube strips. Corning™ Polyethylene Caps for Cluster Tube System are used with 98-well cluster tube systems.

This autoclavable set of 7 neoprene rubber adapters is designed to fit Buchner and fritted glass funnels.

Assorted styles, Size No. 1 to 6

Recommended where rubber would be attacked or deteriorated

For research and parenteral drug applications

DURAN™ bromobutyl rubber closure provide a gas tight seal for all GL 25 and GL 45 laboratory bottles.

For Falcon Round-Bottom Tubes

Plug-type hollow; Sleeve extension

For narrow-aperture containers

Create a tight, reliable seal in virtually all sealing applications.

Improved design fully protects neck in event of accidental tipping

Pliable Soft Rubber Stoppers for multiple applications

Light tan rubber stoppers

To recap blood drawing tubes, glass test tubes and plastic culture tubes

For Cat. No. 05-538-41C/D centrifuge tubes