Flasks, Supplies, Boiling Flasks
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Borosil® Round Bottom Boiling Flasks have uniform wall thickness for even heat distribution. Constructed from stress-free borosilicate. Borosil® Boiling Flasks are heat-resistant. Built to withstand the demands of the modern lab, each flask has a flame-polished, Interchangable Joint, and an…
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Heavy Wall 2L Round Bottom 2-Neck Flasks
Across InternationalAi 2L, 24/40 standard taper joint, heavy wall, round bottom 2-neck flask with one vertical 24/40 neck, and one angled 24/40 side neck. Glass material: high borosilicate glass 3.3.
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SYNTHWARE Round Bottom Flasks with Threaded Side Inlets
Kemtech AmericaSYNTHWARE round bottom, heavy wall, flask with standard taper outer joint and threaded side port. All sizes are hand blown from tubing to ensure uniform wall thickness. Side port is for insertion of thermometer or bleed tube having an O.D. between 5mm and 7.5mm.
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SYNTHWARE Round Bottom Vertical Three Neck Flasks
Kemtech AmericaSYNTHWARE round bottom, heavy wall, three neck flasks with standard taper outer joints on both the center neck and the vertical side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.
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Flask, Round Bottom, Ace-Thred Side Port
Ace GlassRound bottom, single neck flask with Ace-Thred side port supplied with our 5029-10 nylon bushing and 7855-704 FETFE o-ring. Bushing is ideal for use with thermometers or bleed tubes of up to 7mm OD. Available in standard and heavy wall versions.
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Flask, Single Neck, Spherical, Receiving
Ace GlassWith short neck and outer joint. Available in standard and heavy wall. Heavy wall approximately 30% heavier than standard wall.
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SYNTHWARE Flat Bottom Flasks
Kemtech AmericaSYNTHWARE flat bottom boiling flasks with full length standard taper outer joint. All sizes are heavy wall design and are hand blown from borosilicate tubing to ensure uniform wall thickness.
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Flask, Round Bottom, Beaded Tube Port
Ace GlassRound bottom, single neck flask with a beaded tube end port.
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Round bottom, HEAVY WALL single short neck flask with a standard taper outer joint. Flask has two hooks 180°; apart for use with CG-110 stainless steel springs.
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Boiling Flasks
GSC International, Inc.These quality round bottom boiling flasks are made from heat-resistant borosilicate glass, and have 24/40 ground glass joints and thick walls. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer,…
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PYREX Boiling Flasks
CorningCarefully designed and manufactured from borosilicate glass Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance Excellent chemical durability provides contamination-free results and long life…
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Flask, Single Neck
Ace GlassRound bottom flask with short neck and outer joint. Available in standard and heavy wall. Heavy wall approximately 30% heavier than standard wall. Used by glassblowers in fabricating single or multi-necked flasks.
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Pear Shaped Boiling Flasks
DWK Life Sciences (Kimble)Single-neck flask with a Standard Taper outer joint at top Heavy wall Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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SYNTHWARE Round Bottom Flasks with Joint Hooks
Kemtech AmericaSYNTHWARE round bottom, heavy wall, single neck flask with a standard taper outer joint. All sizes are hand blown from tubing to ensure uniform wall thickness. Flask has two hooks 180° apart for use with stainless steel joint springs.
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Round bottom, single neck flask with either a beaded tube end port or a beaded tube end well. Well I.D. on 6935-03 thru 6935-17 is approximately 9.5mm. Well I.D. on 6935-64 thru 6935-78 is approximately 9mm.
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Angled Two Neck Round Bottom Flasks
DWK Life Sciences (Kimble)Two-neck heavy wall flask with Standard Taper outer joints Side neck is angled Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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Flat-Bottom Flasks
GSC International, Inc.These quality flat bottom boiling flasks are made from heat-resistant borosilicate glass, and have narrow mouths, tooled top finishes, and thick walls. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to…
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ValueWare® Round Bottom Flasks, Short Neck, Full-Length
DWK Life Sciences (Kimble)Manufactured from KIMAX™ borosilicate glass, ValueWare has a low coefficient of expansion and a very high resistance to chemical attack. This means optimal performance in the lab at an affordable price. Long life expectancy, resistant to most chemicals. Ideal for general laboratory use.…
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SYNTHWARE Microscale 3-Neck Round Bottom Flasks
Kemtech AmericaRound Bottom Flask, Micro Scale, Synthware, Capacity: 25, or 50mL available, Joints: 14/10 threaded.
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Flask, Two Necks, Vertical
Ace GlassTwo neck, one center and on vertical side neck, round bottom flask with standard taper joints. Available in standard wall or heavy wall.
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Florence Boiling Flasks
EiscoMade of high quality, heavy duty Borosilicate glass Narrow neck, flat bottom, beaded rim. Perfect for any science or home laboratory Florence boiling flask made out of high quality, heavy duty borosilicate glass. Narrow neck, beaded rim and flat bottom. No stopper included. …
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Round bottom, HEAVY WALL single short neck flask with a standard taper outer joint. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask. Please note: There are separate listings for larger capacity round bottom flasks.
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Flasks, PFA, Round Bottom, Single Neck
ChemglassAll PFA single neck round bottom flask with standard taper outer joint. Flask can withstand MAX temperature of 250°C and a MIN temperature of -200C.
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SYNTHWARE Round Bottom Flasks with Spherical Socket Joints
Kemtech AmericaSYNTHWARE round bottom boiling flasks with spherical socket joint. All sizes are heavy wall design and are hand blown from borosilicate tubing to ensure uniform wall thickness. These flasks can be used as replacements for the collection flask on rotary evaporators.
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Flask Boiling Round Bottom 250ml
DWK Life Sciences (Kimble)KIMAX® round bottom boiling flask with a short neck and a medium length Standard Taper joint Designed from ASTM Specification E1403, Type II, Class III requirements Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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SYNTHWARE Pear Shaped Flasks
Kemtech AmericaSYNTHWARE pear shaped, heavy wall, two neck flasks with an angled side neck. All joints are standard taper outer joints. All sizes are hand blown from tubing to ensure uniform wall thickness.
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Flask, Round Bottom, Four Neck
Ace GlassRound bottom flask with four necks arranged 3 in-line and one at 90 degrees. 500ml and smaller flasks have angled side necks while larger sizes feature vertical necks. Available in heavy wall.
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Borosil® Flat Bottom Boiling Flasks have uniform wall thickness for even heat distribution. Flasks are stress free giving them mechanical strength as well as thermal shock resistance. Borosil® Boiling Flasks are heat-resistant. Built to withstand the demands of the modern lab, each flask…
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Round bottom flasks, three vertical necks, spherical outer joints. Available in standard and heavy wall.
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These 22L PYREX(r) round bottom boiling flasks have short ring necks and take a No. 14 rubber stopper. These ring neck boiling flasks are precisely tooled for uniform stopper fit. The reinforced rim increases mechanical strength. These flasks are used in applications requiring rigid stoppering and…