Jointed Flasks

Jointed glass flasks are a mainstay of many glassware systems. Their use in numerous chemistry applications means that jointed flasks are manufactured in a great variety of styles. The number of necks can vary from one to four, and practically every joint size is available, including common sizes like 14/20 and 24/40.

A common type of jointed glass flask is the ubiquitious round bottom flask, which is often used as a boiling flask in heating mantles or as a distilling flask in rotary evaporators. Receiving flasks and recovery flasks are also prevalent, and are used in botanical extraction systems to collect output.

Borosil® Erlenmeyer Flasks with Glass Stopper
-25%
Borosil® Narrow Mouth Erlenmeyer Flasks are manufactured with uniform wall thickness, making them perfect for heating applications that require evenly distributed heat. The classic conical shape promotes effective mixing, and the beaded rim confers maximum durability and resistance to cracking and chipping. Made from the same stress-free, mechanically strong borosilicate...
From $155.00 From $207.67
Flask, 2L, Heavy Wall Erlenmeyer With Joint
-4%
Ai 2L, flat-bottom, heavy wall, Erlenmeyer shaped filtering flask. Specifications Bottom diameter: 7.5 inches Height: 11 inches Flask connector: 24/40 joint Volume: 2000 mL Glass material: high borosilicate glass 3.3 Glassware may have minute blemishes that will not affect the function. If you believe there are imperfections on your glassware,...
From $144.00 From $150.00
Flask, Erlenmeyer with Joint
-26%
From $14.85 $11.00
Flask, Erlenmeyer with Joint. Stopper is not supplied. All sizes are hand-blown from tubing to ensure heavy and uniform wall.
From $11.00 From $14.85
Flask, Evaporation
-28%
From $16.67 $12.00
Heavy wall design. Low profile design sits upright on a bench and also provides for easy product access with a spatula. The unique flask shape is excellent for the controlled evaporation of foaming solvents such as toluene or xylene on a rotary evaporator.
From $12.00 From $16.67
Flask, Filtering, Outer Joint
-26%
From $65.84 $49.00
Heavy wall design made from tubing to ensure excellent quality with 10mm hose connection.
From $49.00 From $65.84
Flask, Flat Bottom, Outer Joint
-28%
From $23.76 $17.00
Heavy wall single neck flat bottom flask with an outer joint. All sizes are hand-blown from tubing to ensure uniform wall thickness.
From $17.00 From $23.76
Flask, High Vacuum Valve
-26%
From $66.28 $49.00
Flask, supplied with a high vacuum valve with O-ring at tip and PTFE wiper (umbrella) to protect FKM O-ring on shaft.
From $49.00 From $66.28
Flask, Kuderna-Danish
-27%
From $53.30 $39.00
Top joint is a 24/40 outer while the lower joint is a 19/22 inner.
From $39.00 From $53.30
Flask, Modified Schlenk Tube, Glass Stopcock
-25%
These flasks have a modified schlenk tube and feature a 2mm glass stopcock.
From $42.00 From $56.27
Flask, Modified Schlenk Tube, High Vacuum Valve
-27%
These flasks have a modified schlenk tube and feature a 0-4mm high vacuum valve.
From $48.00 From $65.51
Flask, Modified Schlenk Tube, PTFE Stopcock
-27%
These flasks have a modified schlenk tube and feature a 2mm PTFE stopcock.
From $44.00 From $59.90
Flask, Oval-Shaped, Heavy Wall, 24/40 Joint
-4%
Ai 24/40 standard taper joint, heavy wall, oval-shaped, round bottom flask. Glass material: high borosilicate glass 3.3. Warranty: Glassware may have minute blemishes that will not affect the function. If you believe there are imperfections on your glassware, please contact us. All glassware is checked prior to shipment.
From $130.00 From $135.00
Flask, Pear Shaped, Outer Joint
-25%
From $17.22 $13.00
These flasks feature a heavy wall design.
From $13.00 From $17.22
Flask, Reaction, Two Neck, Stopcock
-27%
Flask, Reaction, Two-Neck, with a 2mm glass stopcock having a constant pressure retention device.
From $67.00 From $91.30
Flask, Recovery, Outer Joint
-28%
From $16.61 $12.00
Heavy wall design. All sizes listed are hand-blown from tubing to ensure uniform wall thickness.
From $12.00 From $16.61
Flask, Round Bottom, Four Neck
-26%
From $112.86 $84.00
Flask, Round Bottom, Four Neck with identical vertical side joints.
From $84.00 From $112.86
Flask, Round Bottom, Four Neck, Angled
-26%
Heavy wall design. All sizes listed are hand-blown from tubing to ensure uniform wall thickness.
From $51.00 From $69.25
Flask, Round Bottom, Four Neck, Threaded Side Arm
-26%
Round bottom, four-neck flask with standard taper outer joints and a thermometer joint. Supplied complete with a compression cap and FKM O-ring for insertion of plain thermometers or bleed tubes having an O.D. between 5.0 - 7.0mm.
From $87.00 From $117.48
Flask, Round Bottom, Outer Joint
-29%
Heavy wall design. All sizes listed are hand-blown from tubing to ensure uniform wall thickness.
From $11.00 From $15.57
Flask, Round Bottom, Outer Joint, Threaded Inlet
-27%
Flask, Round Bottom, Outer Joint, Threaded Inlet with a threaded side port for insertion of thermometer or bleed tubes. Heavy wall design. All sizes listed are hand-blown from tubing to ensure uniform wall thickness.
From $28.00 From $38.12
Flask, Round Bottom, Outer Joint, with Hooks
-28%
These round bottom flasks with hooks feature a heavy wall design.
From $14.00 From $19.47
Flask, Round Bottom, Spherical Joint
-23%
Flask, Round Bottom, Heavy wall design. All sizes are hand-blown from tubing to ensure uniform wall thickness.
From $21.00 From $27.28
Flask, Round Bottom, Three Neck, Angled
-26%
Round bottom with joints. Heavy wall design. All sizes are hand-blown from tubing to ensure uniform wall thickness.
From $34.00 From $46.20
Flask, Round Bottom, Three Neck, Half-Jacketed, Stopcock Drain
-26%
Round bottom flask with standard taper outer joints on the center and vertical side necks. Heavy wall design. Lower half of the flask is jacketed with two hose connections for circulation of heating or cooling liquid. Lower outlet has a 2mm straight bore glass or PTFE stopcock.
From $281.00 From $381.70
Flask, Round Bottom, Three Neck, Jacketed
-27%
Round bottom flask with standard taper outer joints on the center and vertical side necks. Heavy wall design. Entire flask body is jacketed and has two hose connections for circulation of heating or cooling liquid.
From $302.00 From $410.96
Flask, Round Bottom, Three Neck, Stopcock
-26%
Lower outlet is a 4mm straight bore PTFE stopcock.
From $140.00 From $190.14
Flask, Round Bottom, Three Neck, Vertical
-26%
Round bottom flasks with joints. Heavy wall design. All sizes are hand-blown from tubing to ensure uniform wall thickness.
From $36.00 From $48.90
Flask, Solvent Transfer/Storage
-26%
From $70.62 $52.00
Flask, Solvent Transfer/Storage with vacuum plug and control knob.
From $52.00 From $70.62
Flask, Two Neck, Angled
-26%
From $37.79 $28.00
Round bottom with joints. Heavy wall design. All sizes are hand-blown from tubing to ensure uniform wall thickness.
From $28.00 From $37.79
Recovery Flasks, Pear Shaped, Borosilicate Glass
-22%
Heavy wall recovery flasks are ideal for use with rotary evaporators. Flasks feature a square bead and a single neck with ground glass 24/40 joint. Opening at top is designed for easy recovery of reaction products using a spatula. Flask bottom fits standard heating mantles.Recovery flasks can be special ordered...
From $40.00 From $51.20
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