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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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Diameter (Metric) Hole: 0.5 cm Diameter (Metric) Inner: 5 mm. For Use With (Application): General purpose use. Length (Metric): 2.5 cm
Diameter (Metric) Hole: 0.5cm Diameter (Metric) Inner: 5mm. For Use With (Application): General purpose use. Length (Metric): 2.5 cm
Diameter (Metric) Hole: 0.5cm Diameter (Metric) Inner: 5mm. For Use With (Application): Inexpensive black natural rubber/SBR blend for general purpose uses. Length (Metric): 2.5 cm
Diameter (Metric) Hole: 0.5cm Diameter (Metric) Inner: 5mm. For Use With (Application): Inexpensive black natural rubber/SBR blend for general purpose uses. Length (Metric): 0.25 cm
For Use With (Application): Multi-purpose applications. Size: 6. Total Positions: 3. Color: Black.
Diameter (Metric) Inner: 4.5 cm For Use With (Equipment): For 3.5 to 4.5cm test tubes and flasks openings Length (Metric): 4.44 cm Autoclavable: Autoclavable.
Diameter (Metric) Inner: 2.6cm For Use With (Equipment): For 21 to 26mm in diameter vials. Length (Metric): 4.44 cm Quantity: 400/pk.
Diameter (Metric) Inner: 3cm. For Use With (Equipment): Fits 1.5cm I.D., 3cm O.D. mouth of vials and serum bottles Hardness: 50 Durometer. Autoclavable: Autoclavable.
Diameter (Metric) Inner: 2 cm. For Use With (Application): Lyophilization. For Use With (Equipment): Fits 1.3cm I.D., 2cm O.D. mouth of serum bottles and vials Hardness: 50 Durometer.
For Use With (Application): Low temperature applications. For Use With (Equipment): Fits GPI aluminum seal finish vials. Size: 13. Total Positions: 2.
Description: Glass Stoppers. Diameter (Metric): 2 cm. For Use With (Application): Seal flasks. Height (Metric): 3.6 cm
Description: Includes: Three rings on the plug. For Use With (Application): Improved design fully protects the neck in the event of accidental tipping. Color: Blue. Color: White.
Description: 0.5 x 0.5 x 0.25 in. (1.27 x 1.27 x 0.63cm) For Use With (Application): For use in standard square cuvets, including Fisherbrand disposable plastic cuvets. Height (Metric): 0.63 cm Length (Metric): 1.27 cm
For Use With (Equipment): Flask and separatory funnel. Length (Metric) Ground Zone: 2 cm. Size: 22. Material: Glass.
For Use With (Application): Storage of reagents, and chemicals. Quantity: 10/Pk. Size: ST 24/29. Autoclavable: Not Autoclavable.