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Stoppers
Stoppers, also known as bungs, are used to give an airtight seal to laboratory flasks and test tubes by fitting tightly inside a container's neck, preventing material from spilling out. Rubber stoppers are often sized with a stopper number or stopper size, using the stopper's top and bottom diameter dimensions. Sizing can vary among manufacturers. Stoppers are typically designed with a conical shape, but straight and flanged options are also available. Rubber stoppers are available in a solid design or with holes, also known as positions, present on the stopper's top. Positions are used to
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Product | Brand | Material | Autoclavable | Size | Price | |
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| — | Rubber | — | Pack | |||
| — | HDPE | — | Case | |||
| — | HDPE | — | Case | |||
| — | Rubber | — | Pack | |||
| — | Natural Rubber | — | Pack | |||
| — | Natural Rubber | — | Pack | |||
| — | PTFE | — | Each | |||
| — | Bromobutyl Rubber | Autoclavable | Case | |||
| — | Rubber | — | Pack | |||
| — | Rubber | — | Pack | |||
| — | Rubber | — | Pack | |||
| — | Rubber | — | Pack |
Stopper Solid Rubber 13 mm Bottom Diameter 20 pcs
Rubber Stopper for Butyrometer is ideal for sealing the bulbs of weighing butryometers.
Solid Rubber Stoppers Fisherbrand
Offers higher resilience, flexibility and can withstand many chemical agents in normal laboratory use.
PTFE Stopper, Self Releasing Thermo Fisher Scientific
Fisherbrand™ PTFE Stopper, Self Releasing fit standard taper ground glass joints with sealing rings and self releasing ring for ease of removal.
Wheaton™ Ultra Pure Straight Plug Stoppers Fisherbrand
Provides for extremely high chemical purity and low gas permeability. Wheaton™ Ultra Pure Straight Plug Stoppers are manufactured from an ultra pure bromobutyl formulation.