STOPPERS - "hallow glass" - "hexagonal" - "amber"

Manufactured from borosilicate 3.3 glass according to DIN 12252 standard.

Hexagonal flat head prevents the stopper from rolling on the bench and avoids the breakage risk.

A pointed, round formed  “drip-tip” stopper lower end guarantees return of the adhered liguid back to the flasks.


  
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