Flask, Boiling , 250ml **CLEARANCE**W/round Bottom/long Neck

• These round bottom boiling flasks have long necks with reinforced  tooled tops • Made of special Borosilicate glass (Bore 3.3) that has excellent chemical and physical properties and >80% silica content • Stable structure with great mechanical strength and high resistance against chemical attacks; withstands high thermal shock • ISO 9001:2000 certified      Bulb O.D.:  85mm      Approx. Neck Length:  85mm      Mouth Opening:  24mm      Stopper Size:  #5