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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Jacketed reaction flask with round bottom. Flat flange is grooved for using an o-ring (instead of a flat gasket) to seal to a head. Jacketed for temperature control of ingredients. Supplied with CAPFE o-ring. Codes -01 thru -04 have 28/15 o-ring ball joints on inlet/outlet. Codes -301 thru -304…
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Flask, Three Necks, Jacketed, Heavy Duty
Ace GlassRound bottom flask with three in-line necks. Fabricated with heavy walls, approximately 30% heavier than regular wall flasks. Jacket inlet/outlets are available with either tangentially sealed 28/15 o-ring ball joints or with #11 Ace-Thred connections
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Flasks, Heavy Wall, Pear-Shaped, 3-Necks
ChemglassPear shape, HEAVY WALL 3-neck flask with standard taper outer joints on the center and 20º angled side necks.
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VITLAB, PFA Round Bottom Flasks
BrandTech®These corrosion- and leach-resistant flasks are excellent for rotary evaporation and distillation of high-purity chemicals. They are manufactured from PFA (a perfluoroalkoxy polymer) for excellent resistance to heat and chemical contamination, as well as smooth surfaces that greatly simplify…
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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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Round bottom 2-neck flask having standard taper outer joints, both being of the same size. Available with a choice of a 2mm high vacuum glass stopcock having a S.S. constant pressure retaining device or a 0-4mm Chem-Cap® Airfree® inlet valve. Side neck can be fitted with a CG-3022 septum…
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Similar to 9843-04 Vessel except jacketed to provide active cooling from tap water or mechanical cooler. Jacket is cylindrical with flat bottom for greater stability. With #25 Ace-Thred center neck and two 14/20 side necks. Code -27 includes our 7506-10 #25 Ace-Thred bushing used to secure a…
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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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Round bottom, HEAVY WALL two neck flask with standard taper outer joints on both the center neck and vertical side neck.
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Reaction Flask, Cylindrical, Jacketed
Ace GlassCylindrical jackted reaction flask with a 4" (10.2cm), top opening. Jacket inlet/outlets are available with tangentially sealed with 28/15 O-Ring ball joint connections, or with #11 Ace-Threds, for use with 3/8in tubing.
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Head, Duran Flange
Ace GlassFlat ground flange for use with all Reaction Flasks that have a 150mm (6") 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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Round bottom, borosilicate flask with two necks and a side port with either a 2mm glass stopcock or a 0-3 Inlet valve. Excellent flask for reactions and NO-AIR or vacuum applications. Side port is available with either a 2mm glass stopcock or a 0-3 Inlet valve with 8mm end for use of a rubber septa.
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Rugged cylindrical reaction flask Duran, flat, ground flange and O-ring groove, with an Easy Action Plug bottom outlet with Chemraz O-Rings for draining contents. For use with 6517 quick release clamp. Each flask is supplied with one CAPFE O-Ring (PTFE encapsulated silicone O-Ring). Plain silicone…
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Similar to 9833-05 Vessel except jacketed to provide active cooling from tap water or mechanical cooler. Jacket is cylindrical with flat bottom for greater stability. With #25 Ace-Thred center neck and three 14/20 side necks. Code -35 includes our 7506-10 #25 Ace-Thred bushing used to secure a…
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SYNTHWARE Transfer/Storage Flasks
Kemtech AmericaSYNTHWARE transfer/storage flask for long term storage of deoxygenated solvent. Recovery of solvent is done thru the valve body using a cannula or syringe.
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Reaction Flask Head, #7 Ace-Thred
Ace GlassHeads with four necks, three inline standard taper joints and one perpendicular #7 Ace-Thred™ thermometer joint. Included 5029 nylon bushing & FETFE o-ring permits vertical adjustment of 6-7mm OD thermometers. Use with our 6504,6511 & 6516 reaction vessels that feature either a 137 x 100mm ID…
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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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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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Made of high quality, heavy duty, 3.3 borosilicate glass Includes interchangeable glass penny-head stopper Perfect for any science or home laboratory Iodine flask with ground joint and interchangeable stopper made of high quality, heavy duty 3.3 borosilicate glass. Used for iodine value…
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Disposable Side-arm Assembly
CorningCorning Spinner Flask Aseptic Transfer Caps will enhance the productivity of your cell culture operations when adding or removing medium and cells. Aseptic Transfer Caps are sterile (10?6 SAL), individually double bagged and fit the side arms on 3L Corning Disposable Spinner Flasks (Cat. No. 3563).…
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Round bottom, HEAVY WALL three neck flask with standard taper outer joints on the center and 20º angled side necks. Indentations increase agitation of the contents of the flask during stirring. Please Note: Morton Style Reactors/Flasks Not Suitable For Vacuum.
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Round bottom storage flask with a standard taper outer joint on the sidearm. The 50, 100 and 250mL sizes have a 0-4mm Chem-Vac™ Chem-Cap® valve while the 500 and 1000mL sizes have a 0-8mm valve size.
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Jacketed, spherical reaction flask with Duran flat flange and o-ring groove, for use with our 6517 Quick Release clamp. Bottom outlet features an Easy-Action plug controlling the 28/15 o-ring ball joint outlet. Jacket inlet/outlets are available with either tangentially sealed o-ring ball joints…
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Round bottom,single neck,all PTFE boiling flask. Maximum temperature 260 degrees C.
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CELLine Bioreactor Flasks
Argos TechnologiesCELLine Flasks are ideal for monoclonal antibodies and expressed recombinant cellular protein production. Viable in vitro alternative to using mouse ascites, standard cell culture or tissue culture products. Bioreactors utilize innovative membrane technology to separate the cell cultivation area…
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Cylindrical Reaction Vessels with O-Ring Flange
SP Wilmad-LabGlassThese borosilicate glass cylindrical reaction vessels have a tooled flat flange with an O-ring groove for a greaseless seal. Suitable for vacuum operation. Wall thickness is uniform throughout flask. Note: Use LG-7316 clamps.
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Round bottom, HEAVY WALL three neck flask with standard taper outer joints on the center neck and 20º angled side necks. For Larger Flasks See CG-1524.
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Flask, Trypsinizing
ChemglassManufactured from Type 1 Class A borosilicate glass with FOUR deep side baffles for optimum agitation during trypsinization. Flask comes with beaded, break-resistant lips and 50mm OD necks. Sold 1 per case.
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Round bottom, HEAVY WALL, three-flask with standard taper outer joints on the center and side necks. Entire body of the flask is jacketed and has two hose connections for circulation of heating or cooling liquid. Indentations increase agitation of the contents of the flask during stirring. …
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Iodine Flasks
CorningFor the determination of the iodine number of oils, fats and waxes by the Wijs and Hanus methods Flaring, funnel-shaped lip and Standard Taper 22 stopper
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Glassblowers Flask Blanks, Recovery
ChemglassBlanks for fabrication of recovery flasks. NOTE: NECK IS UNFINISHED, FLASK CANNOT BE USED WITHOUT MODIFICATION OF NECK.
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European style flask with tapered walls and a shallow hemispherical bottom for more efficient mechanical or magnetic stirring. Entire body of the flask is jacketed and has two hose connections for circulation of heating or cooling liquid. With standard taper outer joints on center and side necks.
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