Polypropylene filter flask has a side-arm at a 45° degree downward angle to
prevent tipping. The one-piece molded arm accepts flexible tubing from 3/8" to 1/2" I.D.
Rubber stopper sizes:
500 ml flask: # 6 (34 mm top OD and 27 mm bottom OD)
1000 ml flask: # 7 (37 mm top OD and 30 mm bottom OD)
Maximum use temperature to 135°C (275°F).