Ace Glass 6511-49

<p><strong>Round Bottom Flask, 4L </strong> </p> <p>Flat Flange, With O-Ring Groove </p> <p>Cylindrical, heavy-wall reaction flask, round bottom. Top has flat flange with an o-ring groove for use with CAPFE? (PTFE encapsulated silicone rubber) o-ring instead of gasket. Without constriction at top to facilitate introduction/removal of material and allow for ease of cleaning. For reaction heads, see 6512, 6513 and 6515. For clamp, see 6508 or 6510. </p>