Boiling Flasks

Boiling Flasks
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Lenz Laborglasinstrumente™ Duran™ Medium-neck Round Bottom Flasks
Manufactured from Duran™ glass. Lenz Laborglasinstrumente™ Duran™ Medium-neck Round Bottom Flasks include a conical ground joint.

Neck Style | Medium |
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Bottom Shape | Round |
Material | Borosilicate Glass,Duran Glass |
Certifications/Compliance | DIN EN ISO 4797 |
Lenz Laborglasinstrumente™ Two-Neck Round Bottom Flasks, Side Neck Angled
Especially made for distillation, reactions and to make solutions or hold, contain and collect chemicals. Lenz Laborglasinstrumente™ Two-Neck Round Bottom Flasks, Side Neck Angled are manufactured from durable DURAN™ borosilicate glass.

Bottom Shape | Round |
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Material | Borosilicate Glass,Duran Glass |
Quickfit Quickfit™ Short Neck Round Bottom Flask
Manufactured from borosilicate glass. Quickfit Jointed Ware™ Quickfit™ Short Neck Round Bottom Flask offers corrosion-free performance and resistance to thermal shock.

Neck Style | Short |
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Bottom Shape | Round |
Material | Borosilicate Glass |
Certifications/Compliance | Body diameter and wall thickness comply with relevant ISO 1773 and ISO 4797 requirements |
Quickfit Quickfit™ Three-Neck Round-Bottom Glass Flask
Useful for introducing gas inlet tubes and thermometers into the flask. The Quickfit Jointed Ware™ Quickfit™ Three-Neck Round-Bottom Flask has precision-ground sockets from borosilicate glass.

Material | Borosilicate Glass |
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Quickfit Quickfit™ Borosilicate Glass Short Neck Round Bottom Flask
Use these flasks for a variety of applications. Quickfit™ Borosilicate Glass Short Neck Round Bottom Flask are manufactured from borosilicate glass for corrosion-free performance and resistance to thermal shock.
Bottom Shape | Round |
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Material | Borosilicate Glass |
Certifications/Compliance | ISO 1773, ISO 4797 |
Lenz Laborglasinstrumente™ Three-Neck Round Bottom Flasks, Side Necks Angled
Especially made for distillation, reactions and to make solutions or hold, contain and collect chemicals. Lenz Laborglasinstrumente™ Three-Neck Round Bottom Flasks, Side Necks Angled are manufactured from durable DURAN™ borosilicate glass.
Bottom Shape | Round |
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Material | Borosilicate Glass,Duran Glass |
DWK Life Sciences DURAN™ Round Bottom Flask, with standard ground joint
Round flasks are used for reactions of all kinds, e.g. using heat during distillation or extraction, as receiving flasks, for freezing or in vacuum apparatus.

Material | Borosilicate Glass (3.3) |
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Autoclavable | Autoclavable |
For Use With (Application) | Distillation; Extraction; Connection to other glass vessels; Heating; Suitable for heating baths and mantles; Evaporation of liquids; Suitable for mounting on tripods; Drying of materials; Volume sizes 25 mL (NS 19/26), 50 mL (NS 24/29 and NS 29/32), 500 mL (NS 45/40), 1000 mL (NS 45/40) and 2000 mL (NS 45/40) are not accordting to DIN ISO |
Quickfit Quickfit™ Borosilicate Glass Short Neck Flat Bottom Flask
Manufactured from borosilicate glass. Quickfit Jointed Ware™ Quickfit™ Borosilicate Glass Short Neck Flat Bottom Flask complies with ISO 1773 and ISO 4797.

Neck Style | Short |
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Bottom Shape | Flat |
Material | Borosilicate Glass |
Certifications/Compliance | ISO 1773, ISO 4797 |
Pyrex Pyrex™ Borosilicate Glass Narrow Neck Round Bottom Boiling Flask
Resistant to chemical corrosion and thermal shock
Bottom Shape | Round |
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Material | Borosilicate Glass |
Certifications/Compliance | ISO 1773 |
Afora™ Short Neck Round Flask
Boil laboratory chemicals using the Afora™ Short Neck Round Flask. Its quality construction makes it durable and reliable in the laboratory.

Neck Style | Single |
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Bottom Shape | Round |
Material | Borosilicate Glass |
Pyrex™ Quickfit™ Borosilicate Glass Florentine Flask
Remove solid residues with ease, using this robust, pear-shaped flask. Quickfit™ Borosilicate Glass Florentine Flask features a large surface area for rapid evaporation.

Standard Taper Joint | 29/32 |
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Material | Borosilicate Glass |
Lenz Laborglasinstrumente™ Round Bottom Three-Neck Flasks
Especially made for reactions and distillation and can be used to make solutions or hold, contain and collect chemicals. Lenz Laborglasinstrumente™ Round Bottom Three-Neck Flasks are manufactured from durable DURAN™ glass.
Lenz Laborglasinstrumente™ Lenz Laborglasinstrumente™ Duran™ Three-neck Round Bottom Reaction Flasks – Parallel side necks include ground conical joints. DIN 12392 compliant
Manufactured from DURAN™ glass. Lenz Laborglasinstrumente™ Duran™ Three-neck Round Bottom Reaction Flasks include two parallel side necks in addition to the main neck, each with conical ground joints.
Neck Style | Three Neck |
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Standard Taper Joint | NS 29/32 |
Bottom Shape | Round |
Material | Borosilicate Glass,Duran Glass |
Certifications/Compliance | DIN 12392 |
Lenz Laborglasintrumente™ Nitrogen Round-Bottom Flasks with NS Stopcock
Nitrogen round-bottom flask (to Schlenk) with NS stopcock
Quickfit Quickfit™ Three-Vertical-Neck Round-Bottom Flask
Includes three necks for easy addition of measurement tools. The Quickfit™ Three-Vertical-Neck Round-Bottome Flask is made from borosilicate glass.
Bottom Shape | Round |
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Material | Borosilicate Glass |