Stoppers

Leak-proof, solid stoppers seal bottles, flasks, vials, and even tubing to prevent liquids and gases escaping. Multi-hole styles provide the limited flow stability conditions desired in order to prevent air bubble build up. With a slightly tapered design, different diameter sized stoppers are inserted in labware for a snug fit that still allows easy removal. The closures are manufactured in different materials for accurate resistance to harsh contents and can maintain vacuum atmosphere.

Stoppers, Glass, Conical Ground Joint

Supplier: DWK Life Sciences

DURAN® glass stopper with conical ground joint, for reagent bottles and oxygen bottles according to Winkler.

Expand 1 Items

Rubber stoppers for lyophilisation, WHEATON®

Supplier: DWK Life Sciences

Ultra pure chlorobutyl-isoprene rubber stoppers for lyophilisation.

Expand 5 Items

Stoppers, for test tubes

Supplier: RATIOLAB

PE.

Expand 5 Items

Silicone stoppers

Supplier: Brand

These stoppers are made from natural coloured silicone.

Expand 6 Items

Plugs, PE

Supplier: MACHEREY-NAGEL

PE plugs with a diaphragm for safe penetration of the needle are used for the shell vials.

Expand 1 Items

WHEATON® Premium Rubber Stoppers

Supplier: DWK Life Sciences

Ultra-pure rubber stoppers made from a bromobutyl rubber compound containing the highest level of chemical purity. These stoppers demonstrate very low levels of moisture absorption and extractables.

Expand 7 Items

Rubber Stoppers for Use with GV 050, GV 100 and MV 050 Vacuum Filtration Devices

Supplier: Whatman products (Cytiva)

Rubber stopper

Expand 1 Items

Stoppers, rubber

Supplier: Brand

Natural rubber, red.

Expand 6 Items

WHEATON® Lyophilisation Stopper, Bromobutyl

Supplier: DWK Life Sciences

Igloo lyophilisation style stoppers.

Expand 1 Items

Silicone rubber stoppers, conical

Supplier: BURKLE

These conical silicone rubber stoppers are translucent, chemically-biologically neutral, food-safe according to BfR Recommendation XV and FDA § 177.2600.