Made of borosilicate glass and comes with a sturdy mesh cover which facilitates a firm grip, provides cushion against bumping and increases protection.

Thick wall borosilicate glass flask has wide opening for easy access to the sample. Flat bottom so that flask can be free standing. Interchangeable with most freeze drying flasks.

Made of borosilicate glass and comes with an exterior metal housing that extends nearly to the top rim of the Dewar. This housing adds the safety of metal to the efficiency of glass, particularly important in handling operation.

Round bottom, three-neck flask with standard taper joints on the center and side necks. Lower drain comes complete with PTFE plug and Viton O-rings for draining.

Screw cap with rubber liner for easy access during the culturing procedure.

With outer joint.

14/20 outer joint, 2 mm double oblique stopcock at bottom and pressure/vacuum stopcock on side arm.

Heavy-wall, flat bottom flask with standard 24/40 joint - other joint sizes also available - please inquire.
Can be designed as a Schlenk flask with hi-vacuum valve in place of joint, including side tubulation with joints.
Long-neck flat bottom flasks also available upon request.

These flasks with tubulation are blown in special molds in shapes designed to give maximum mechanical strength. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers. Tubulation O.D. on sizes up to 1000 ml is10 mm. Tubulation O.D. for 2000 ml and 4000 ml is 12.5 mm.

These small filtering flasks are recommended for micro chemical use. All flasks have permanent white enamel marking spots.

With Outer Joint

With beaded lip

With standard joint(14/20) or with 14/10 threaded joint.

With 14/10 threaded joint and hose connection.

With threaded joint. Supplied with threaded open cap, PTFE faced silicone rubber septum and one o-ring.

Similar to QMS-17, but with threaded side port. Side port is supplied with holed cap, PTFE faced septum and o-ring.

With 14/10 joints. Supplied with holed caps, PTFE faced septas and o-rings.

With 14/10 joints. Supplied with holed cap, PTFE faced septa, and o-ring.

Sidearm has a 13-425 thread and is supplied complete with a holed cap and PTFE faced silicone septa. 14/10 outer top joint.

Erlenmeyer shaped microscale filtering flask, 25 ml. Accommodates #3 rubber stopper. Extra heavy with heavy duty hose connection.