A laboratory rubber stopper is mainly used in chemical laboratory in combination with flasks and test tub. Specifications: Material: Rubber Flask Closure

A laboratory rubber stopper is mainly used in chemical laboratory in combination with flasks and test tub. Specifications: Material: Made from Rubber

Gas tight tube designed for maintaining anaerobic conditions. Useful for studies involving methane-producing bacteria. Includes gas impermeable blue butyl rubber septum type stopper. Tube is made of Type 1 Class B Borosilicate glass. Specifications: Type 1 Class B Borosilicate Glass Blue…

A laboratory rubber stopper is mainly used in chemical laboratory in combination with flasks and test tub. Specifications: Material: Rubber Flask Closure Size: 0 Top Diameter: 17mm Bottom Diameter: 13.5mm Length 25mm

Manufactured from Blue Chlorobutyl. The septum stopper can withstand autoclaving 160 degree Celsius at normal autoclaving times 12-20 minutes. Specifications: Material: Blue Chlorbutyl Autoclaving: No Higher Than 160 Degree Celsius Size: 20mm Case Quantity: 100  

Hungate stopper only for use with Hungate tubes. Specifications: Black Butyl Rubber Size: 13MM 250 each per case Dimensions: 13mm at top, to 10mm x 5mm Thick For Use With Hungate Tube:  2047-00125  

A laboratory rubber stopper is mainly used in chemical laboratory in combination with flasks and test tub. Specifications: Material: Rubber Flask Closure