Buchner filtering flasks or Vacuum flasks. Heavy wall. High quality 3.3 borosilicate glass. Heat tolerances: Strain Point -515°C / Annealing Point 565°C / Softening Point 820°C.
Side Arm O.D.: 8mm
Side Arm Length: 25mm
Stopper Size 25 × 28 × 28mm
Tubing Bore Size: 8mm.