Specialty Flasks
Specialty flasks are the backbone of many experimental setups, offering the durability and precision needed for demanding experiments.
Explore our diverse collection, including round bottom flasks, single neck flasks, bioreactor flasks, Ace Glass freeze-drying flasks, and 4 neck flat flange reaction vessel covers. All flasks are carefully designed to withstand the requirements of multiple research and analysis procedures.
In this category, you'll discover renowned brands such as Chemglass, Ace Glass, and Kemtech America, all known for their commitment to quality and innovation in lab glassware.
Whether you're searching for a Schlenk flask, a three-neck round bottom flask, a biomass flask, or a 3-neck flask for your lab, we offer a selection of flask options suitable for a range of experiements. Trust our specialty flasks to provide the precision and durability your research demands.
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Flat bottom borosilicate flask for use with Labconco and Virtis freeze dryers. Wide mouth design provides easy access sample. PLEASE NOTE: FLASKS ONLY. NOT SUPPLIED WITH RUBBER TOP, FILTER OR O-RING. Note: Labconco and Virtis are not related to or affiliated with Chemglass, and…
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Rugged spherical reaction flask with Duran, flat, ground flange with O-Ring groove, for use with 6517 Quick Release Clamp but with indents for greater agitation. Each flask is supplied with one CAPFE O-Ring (PTFE encapsulated silicone O-Ring). Plain silicone O-Rings are also available. For reaction…
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Instatherm Reaction Flask
Ace GlassThis integral heating element eliminates the local super heating com- monly associated with more conventional heating methods and eliminates cumbersome and dangerous oil baths. The response is raoid and accurate the attention can be directed to contents instead of the pot. supplied with cord. Flask…
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3 Neck O-Ring Flange Reaction Vessel Cover for Size 359 O-Rings
SP Wilmad-LabGlassFeaturing a center neck and two side necks with full length outer Standard Taper joints, this borosilicate glass 3-neck reaction vessel lid/cover has an 6-5/8" flange O.D. and comes with a size 359 O-ring. Designed to be used with 2000mL, 3000mL, and 4000mL cylindrical reaction vessels…
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Rugged cylindrical jacketed reaction flask with Duran, flat, ground flange and o-ring groove. Various bottom outlet options are available (see details below). For use with 6517 quick release clamp. Jacket inlet/outlets are available with either tangentially sealed o-ring ball joints or with…
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Chapman Specific Gravity Flask
Gilson Co. Inc.Chapman Specific Gravity Flask determines percentage of surface moisture and voids in fine aggregates Upper and lower bulbs contain 175ml and 200ml Stem is graduated from 375—450ml
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Reaction Flask, Spherical, Jacketed
Ace GlassSpherical, jacketed reaction flask with 100mm (4") flat flange top. Jacket inlet/outlets available with either tangentially sealed 28/15 o-ring ball joints or with Ace-Thred connections. Use 6496-10 clamp to secure head to flask.
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3 Neck Flat Flange Reaction Vessel Cover
SP Wilmad-LabGlassFeaturing a center neck and two side necks with full length outer Standard Taper joints, this borosilicate glass 3-neck reaction vessel lid/cover has a flat flange. For use with large capacity cylindrical reaction vessels, 2000mL, 3000mL and 4000mL (LG-8082, LG-8084, LG-8085, and LG-8089). Flange…
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SYNTHWARE Reaction Vessel, Photochemical
Kemtech AmericaReaction Vessel, Photochemical, Synthware, Joint: 14/20 + 24/40, #50 Internal Top Thread, #7 Arm Side Thread, 500mL Capacity.
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Glassblowers Flask Blanks, Flat Bottom
ChemglassBlanks for fabrication of single or multi-neck flat bottom flasks. NOTE: NECK IS UNFINISHED, FLASK CANNOT BE USED WITHOUT MODIFICATION OF NECK.
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Fat Extraction Flask, 25 mL
DWK Life Sciences (Kimble)Settling chamber capacity: 25 mL Extraction chamber diameter: 35 mm Top opening has pouring lip and is tooled for a#0 stopper.
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Heavy wall round bottom three neck flask with standard taper outer joints on center and side necks. Lower outlet is a CG-911-A extended tip which fills the seat area and permits total agitation of the contents of the flask. Once opened the contents of the flask will drain through the sidearm. The…
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SYNTHWARE Reaction Tubes with Glass Stopcock
Kemtech AmericaSYNTHWARE cylindrical reaction tube with standard taper outer joint and 2mm bore glass stopcock sidearm. Useful for sample storage and simple reactions. The stopcock has a constant pressure retention device.
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Flask, Tapered Wall
Ace GlassWalls tapered inward toward the bottom to allow continuous operation with smaller volumes. Flasks supplied with joint on center and two side necks. The four and five neck versions have one or two #7 Ace- Thred necks to accomodate thermometers and elect
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Overflow measuring flasks are a simple and very precise way to conform to fixed volume instructions. They are available in different sizes for different measuring ranges with the respective sample volumes.
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Head, Duran Flange
Ace GlassFlat ground flange for use with all Reaction Flasks that have a 100mm (4") Duran ground mating flange. Supplied with three in line ground joints and one or two 90 degree joints. For thermometer or probe adapter, see our 5028 series. For clamp, see 6517.
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Separation Tube, Glass, 24/40 Joints
GSC International, Inc.Our Separation Tube is made from heat-resistant borosilicate glass, and has a PTFE stopcock and a 24/40 ground glass joint. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.
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Round bottom, HEAVY WALL, three-neck flask with standard taper outer joints on the center neck and vertical side necks. Lower half of the flask is jacketed with two hose connections for circulation of heating or cooling liquid.
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Head, Duran Flange
Ace GlassProduct family consisting of large spherical flasks and the heads that complement them. Flasks that feature a bottom outlet have descriptions that state the outlet's type, otherwise the flask has no outlet.
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Hydrogenation/Gas Apparatus I
Ace GlassParr Model 3911 Hydrogenation unit for working volumes of 1ml to 200ml . Ace-thred vessels replace rubber stoppered vessels and eliminate cross-over contamination caused by leeching or sample retension. Complete unit includes all adapters needed for the supplied 8648 series bottles…
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Round bottom, HEAVY WALL three neck flask with standard taper outer joints on the center neck and vertical side necks. Flasks with 29/26 center necks have a groove tooled just below the grind to aid in clamping of the flask.
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CELLine Adhere
Argos TechnologiesCELLine Flasks are ideal for monoclonal antibodies and expressed recombinant cellular protein production. Viable in vitro alternative to using, standard cell culture or tissue culture products or mouse ascites. Bioreactors utilize innovative membrane technology to separate the cell cultivation area…
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Instatherm Reaction Flask and Head
Ace GlassRugged cylindrical reaction flask and head with Duran, flat, ground 4" flange with O-Ring groove and integral heating element that eliminates the local superheating commonly associated with more conventional heating methods and eliminates cumbersome and dangerous oil baths. Response is rapid and…
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SYNTHWARE Reaction Tubes with High Vacuum Valve
Kemtech AmericaSYNTHWARE cylindrical reaction tube with a standard taper outer joint and a high vacuum valve sidearm. Useful for sample storage or simple reactions. Valve plug may be removed to sample from the tube while an inert gas purge is passed through the sidearm.
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SYNTHWARE Immersion Well, Photochemical
Kemtech AmericaImmersion Well, Photochemical, Synthware, Without Joint, Outer Body Length: 390mm.
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Round bottom single neck flask having a standard taper outer joint with a Chem-Vac™ Chem-Cap® valve sidearm. Plug may be removed for sampling from flask while a purge of inert gas is maintained thru the sidearm. Valve size is as listed.
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Flask, Reaction, Cylindrical, Plain
Ace GlassRugged cylindrical reaction flask with Duran ground flange with o-ring groove, for use with 6517 Quick Release Clamp. Each flask is supplied with one CAPFE (PTFE encapsulated silicone) o-ring. Plain silicone o-rings are also available (see 7855). For reaction heads, see 6528 or 6530. For…
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Round bottom, HEAVY WALL, four neck flask with standard taper outer joints on the center and 20º angled side necks.
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Round bottom, borosilicate flask for NO-AIR and vacuum applications. Ideal for storage or reactions. 0-4mm Hi-Vac valve for precise control of flow. 15mm o-ring joint side arm for connecting to schlenk lines. 7855-726 Fetfe o-ring included.
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Jacketed Cylindrical Reaction Vessels with Flat Flange
SP Wilmad-LabGlassThese jacketed, cylindrical borosilicate glass reaction vessels are without constriction at the top and have a flat bottom. They feature sturdy walls and a tooled flat flange with a surface ground to assure a tight seal. There is a gently sloping contour at junction of side wall and bottom, thus…
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SYNTHWARE Kuderna-Danish Flasks
Kemtech AmericaTop joint is a 24/40 outer while the lower joint is a 19/22 inner.