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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Round bottom single neck flask having a standard taper outer joint. 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.
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Bench scale, 1000 - 6000mL, Clean-In-Place sprayer for use with either pressurized or vacuum assisted flask washing. All PTFE construction. Four, 3 inch sections with available extenders allow flexibility. Ace recommends that the sprayer ball be positi
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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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This is a 1L PYREX® replacement flask with a 29/42 outer Standard Taper joint for the No. 3840-XL 1L extractor system. The tubulation O.D. on the condenser is 10mm.
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Round bottom, HEAVY WALL, three-neck 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.
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PYREX® Hickman Still Head
CorningThis Hickman Still Head is a replacement part for the 6949M series of PYREX® microchemistry kits.
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Round bottom storage flask which can maintain dry, grease-free and deoxygenated solvent storage for long periods of time. Unique design permits filling of the flask using a 24/40 inlet off of a vacuum line and recovery of the solvent via a cannula or syringe through the valve body.
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Biomass Flasks
GSC International, Inc.These biomass flasks are made from quality borosilicate glass. They all have a 24/40 ground glass bottom joint, but their top joints are all different sizes that are designed to fit our various distilling arms . The large top openings are ideal for inserting materials for distillation. …
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Reaction Flask, Spherical
Ace GlassRugged spherical flask with neck opening of 4" (10.2cm). Standard size flasks use regular Glas-Col heating mantles of equivalent capacity. Length of straight section including flange, approximately 9.5cm (33/4 "). Uses 6496 Clamp for securing flask hea
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Ace Glass Freeze Drying Flask
Ace GlassComplete fast-freeze flask with snap-on rubber cap and 1/2-inch or 3/4-inch O.D. plain or valve adapter, compatible with all major brand freeze drying manifold valves. Borosilicate flasks are designed for ease of handling, faster loading. Uniform wall weight maximizes heat transfer while…
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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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Pear Shaped Glass Recovery Flasks
United Scientific SuppliesHeavy 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.
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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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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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Flasks, PFA, Round Bottom, Three Neck
ChemglassAll PFA three neck round bottom flask with standard taper outer joint center neck and two additional 20° angled side necks. Allows assembly with a temperature probe, electrode or tube. Flask can withstand MAX temperature of 250°C and a MIN temperature of -200°C.
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Flask Single Neck, Side Arm, No-Air
Ace GlassRound bottom flask with single neck with standard taper joint and a 8mm side outlet with either a 2mm glass stopcock or a 0-3 inlet valve. Ideal for Schlenk lines and either NO-AIR or vacuum applications. Includes one 9096-32 septa for side arm.
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Heavy Wall blanks are 30% heavier than our standard CG-618 series. Blanks are used in the fabrication of single or multi-neck round bottom flasks. NOTE: NECK IS UNFINISHED, FLASK CANNOT BE USED WITHOUT MODIFICATION OF NECK.
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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 Schlenk Storage Tubes with High Vacuum Valves
Kemtech AmericaSYNTHWARE Schlenk storage tube with a high vacuum valve. The valve has a PTFE O-ring at the tip and a PTFE wiper to protect the O-rings on the shaft. Valve is used to control liquid or gas flow into the vessel.
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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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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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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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Cylindrical Jacketed Reaction Vessels with O-Ring Flange
SP Wilmad-LabGlassThese cylindrical borosilicate glass reaction vessels are jacketed with 1/2" hose connections. They 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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SYNTHWARE Modified Schlenk Flasks with Teflon® Stopcocks
Kemtech AmericaSYNTHWARE modified Schlenk flask with a standard taper outer joint and a 2mm bore PTFE stopcock in side arm. The Kjeldahl shape permits easy transfer of liquids and solids. The lower portion of the flasks fits standard heating mantles to facilitate heating and stirring.
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Flask, Single Neck, Pear Shaped
Ace GlassPear-shaped, single neck, heavy duty flask. Available with ground, polished and cap-seal joints. The cap-seal flasks are used in the Ace microscale chemistry product line and feature a 14/10 ground joint with external threads. Supplied with a holed cap
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Lower half of flask has a jacket permitting heating or cooling of the contents with fluid from a constant temperature bath. The unique design of the Chem-Drain valve incorporates a PTFE plunger that allows the contents of the flask to drain directly through the bore of the plunger. When closed,…
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Determines CO2 evolution to assess biodegradability by soil and sewerage micro-organisms. Shake flask fits standard laboratory shakers. #7 Ace-Thred side port with Nylon bushing and FETFE O-ring holds a glass septum adapter. Inner well has a capacity of 10 mL plus head space. Well is held securely…
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Round bottom pressure flask, with either #15 or #25 PTFE plug seal top opening. This style also has a side thermowell port to facilitate a thermometer or a temperature probe to measure flask temperature without losing the pressure integrity of the vess
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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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Heavy wall cylindrical reaction flask with Duran grooved flange opening. Flask has Zero Dead Space, (ZDS), bottom valve. The valve features no material hang-up in the fully open position. When closed, the valve seats flush with the bottom of the flask. Includes one CAPFE o-ring. See Ace 6517 for…
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Round bottom, HEAVY WALL three neck flask with standard taper outer joints on the center and side necks. Indentations increase agitation of the contents of the flask during stirring. Please Note: Morton Style Reactors/Flasks Not Suitable For Vacuum.