DURAN® hollow hexagonal stopper, pointed, DG ground, NS 29/32

DURAN® hollow hexagonal plugs, pointed, DG ground, NS 29/32 DURAN® hollow hexagonal plugs are used for sealing laboratory equipment such as volumetric flasks, mixing cylinders, ground flasks, etc. DURAN® hexagonal hollow plugs are available in 2 standard variants - pointed - flat sizes analogous to DURAN® conical ground joints. Grinding quality: DG = Diamond ground Special features and advantages: Pointed diamond ground With drip syringe on which e.g. condensate can be collected and returned to the reaction medium Hollow glass stopper Application: Closure of vessels with standard ground joints