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.
Glass stoppers for iodine flasks, Quickfit®
Supplier: SciLabware
Quickfit® iodine flask stoppers.
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Hollow-blown glass stoppers, C-length, Quickfit®
Supplier: SciLabware
These glass stoppers are ideally suited for use with Quickfit® jointed glassware and other glassware having the shorter 'C' length ground glass sockets.
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Stoppers for sample bottles, BEHROTEST®
Supplier: BEHR
These glass stoppers can be used instead of DIN/DEV diagonally cut stoppers. They are easy to use due to the lack of the easily broken edges.
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Cellulose stoppers, Steristoppers®
Supplier: HERENZ HEINZ
Original Steristoppers® have been proved as an excellent sealing for microbiological samples and tissue cultures in test tubes and Erlenmeyer flasks. They are in constant use in many world famous microbiological laboratories.
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Stoppers, with drip tip, MBL®
Supplier: SciLabware
Ideally suited for use with volumetric flasks etc. Lower closed end of stopper features a 'drip-tip' to ensure adhered liquid is returned to the flask. Flat head allows stopper to be stood on end, thus preventing contamination of the ground surface.
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Stoppers for volumetric flasks, PP
Supplier: Poulten & Graf
Stopper for Volumetric flask, PP, with sealing profile, NS: 10/19
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Stoppers for conical ground Joints, PE
Supplier: Lenz Laborglas GmbH & CO.KG
PE, white with red cover plate and octagonal head.
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Silicone rubber sponge stoppers
Supplier: MARKET SOURCE PART PROCESS
This silicone sponge closure is manufactured with a sealed in silicone sponge filter. Flange fits snugly over the necks of vessels permitting the exchange of gases, while reducing evaporation and preventing the passing of aerosols.