Boiling Flasks
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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® Flat 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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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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SYNTHWARE Round Bottom Angled Four Neck Flasks
Kemtech AmericaSYNTHWARE round bottom, heavy wall, four neck flasks with standard taper outer joints on both the center neck and the angled side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.
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Round Bottom Three Vertical Neck Flasks
SP Wilmad-LabGlassAvailable in various sizes, these borosilicate glass round bottom flasks have three vertical necks with Standard Taper outer joints. The side necks are 180° apart.
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Flasks, Flat Bottom, Long Necks
ChemglassSingle neck, flat bottom flask with a standard taper outer joint.
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Flask, Round Bottom, Three Neck
Ace GlassWith outer joints with side necks angled. Available fabricated with heavy walls, approximately 30% heavier than regular wall flasks. Round bottom, three neck flask with angled sides. All joints are standard taper. Available in standard and heavy wall.<
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SYNTHWARE Round Bottom Flasks
Kemtech AmericaSYNTHWARE round 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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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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Single Standard Taper Neck Heavy Wall Round Bottom Flasks
DWK Life Sciences (Kimble)Single neck flask with a Standard Taper outer joint Heavy wall Ref: ASTM Method D95 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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Round bottom flask with four necks arranged 3 in-line and one #7 Ace-Thred neck (ideal for suspending a thermometer or probe) at 90 degrees. The 500ml and 250ml sizes have angled side necks while the larger sizes feature vertical necks. Available in he
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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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Borosilicate Glass Round Bottom Boiling Flasks with Ground Glass Joints
United Scientific SuppliesBoiling, round bottom flasks with ground glass joints. Our boiling flasks are made from low-expansion borosilicate glass. Feature uniform wall thickness for superior mechanical strength and shock resistance. Ideal for boiling, heating and mixing in the laboratory.
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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…
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Flask Boiling Flat Bottom 500ml
DWK Life Sciences (Kimble)KIMAX® boiling flask with a short Standard Taper joint neck. Designed from ASTM Specification E1403, Type I, Class IV 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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Round bottom, single neck flask with a beaded tube end well.
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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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Class A Mixing Bulb Style Wide Mouth Flasks with Standard Taper Stoppers
DWK Life Sciences (Kimble)Wide mouths allow easy access into these mixing bulb volumetric flasks for applications such as dissolving tablets and other solids. Mixing bulb in neck accommodates approximately one tenth of the flask’s total volume and is designed to aid in dissolving or mixing the contents of the…
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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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Round bottom, HEAVY WALL flask with standard taper outer joint. Side tubulation accepts a CG-1040 rubber fitment for insertion of thermometers or bleed tubes. Supplied complete with one CG-1040 rubber fitting.
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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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Round bottom Short ring neck These PYREX® round bottom boiling flasks have short ring necks. 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…
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ValueWare® Flat Bottom Flasks, Florence, Reinforced Beaded Top
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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Flask, Three Necks, Angled
Ace GlassRound bottom flask, three necks with angled sides. All joints are standard taper. Available in standard and heavy wall.
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Flasks, Quartz, Flat Bottom, Single Neck
ChemglassSingle neck, flat bottom, quartz flask with standard taper outer joint.
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These 250mL PYREX(r) low actinic flat bottom boiling flasks have full length outer 24/40 Standard Taper joints, but with shorter necks. Low actinic stained glass provides protection for materials sensitive to light. The protective color is an integral part of the flask, which retains the mechanical…
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Heavy Wall 10L Round Bottom 3-Neck Flasks
Across InternationalAi 10L heavy wall, 3-neck round bottom flask with 24/40 and 34/45 standard taper joint. Comes with two vertical 34/45 side necks and one 24/40 center neck. Glass material: high borosilicate glass 3.3.
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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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Round bottom, HEAVY WALL flask with a standard taper outer joint and a #7 Chem-Thread as a side neck for insertion of thermometers or bleed tubes having an O.D. between 4 and 7mm.
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Single Neck Flat Bottom Flasks
ChemglassSingle neck, flat bottom flask with a standard taper outer joint.