Ace Glass 6540-120 Spherical Flask 22L 150mm(6") O-Ring Grooved Flange 0-20mm ZDS Bottom Valve

Heavy wall spherical reaction flask with Duran grooved flange opening. Flask has Zero Dead Space, (ZDS), bottom valve. The valve features no material hang-up in the fully open position. When closed, the valve seats flush with the bottom of the flask. Includes one CAPFE o-ring.