You Searched For: Round Bottom Flasks

Specifically shaped for uniform heat distribution, the round bottom flasks are used for distillation, chemical reactions, heating liquid sample, and storage demands. Manufactured from resistant glass, the spherical containers will spread encountered stress evenly across surfaces to prevent fracturing. Built with temperature resistance, the glassware is an essential piece in reflux set-ups. Primarily used for chemical and biochemical research, the round bottom flasks have short or long neck options.

Specifically shaped for uniform heat distribution, the round bottom flasks are used for distillation, chemical reactions, heating liquid sample, and storage demands. Manufactured from resistant glass, the spherical containers will spread encountered stress evenly across surfaces to prevent fracturing. Built with temperature resistance, the glassware is an essential piece in reflux set-ups. Primarily used for chemical and biochemical research, the round bottom flasks have short or long neck options.


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Supplier: Ace Glass
Description: Round-bottom flasks with three vertical necks and [ST] outer joints

Small Business Enterprise Product available on GSA Advantage®

Catalog Number: (89054-864)
Supplier: Ace Glass
Description: Spherical reaction flask with flat, ground KF flange and bottom outlet. Supplied with capacity reference graduations. Side sample port is angled at 45° (Duran style flange 2.5" in diameter). Main flange opening uses 89055-274 clamp and 89055-286 gasket. Each flask is supplied with one CAPFE (PTFE encapsulated silicone) o-ring for side port. All have 60 mm Angled Access Port, and Bottom Outlet.

Small Business Enterprise Product available on GSA Advantage®


Supplier: Ace Glass
Description: These round-bottom flasks have angled side necks and [ST] outer joints

Small Business Enterprise Product available on GSA Advantage®

Supplier: DWK Life Sciences (KIMBLE)
Description: Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.

Supplier: Ace Glass
Description: Distilling round-bottom flask coated with Ace Instatherm®

Small Business Enterprise Product available on GSA Advantage®

Supplier: DWK Life Sciences (KIMBLE)
Description: Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.

Supplier: DWK Life Sciences (KIMBLE)
Description: All flasks have a short neck and a full length [ST] 24/40 interchangeable ground glass joint
Supplier: Ace Glass
Description: This flask has walls tapered inward toward the bottom

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: This round-bottom flask has a single long neck with a reinforced [ST] 24/40 outer joint

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: Two neck, one center and one vertical side neck, round bottom flask with standard taper joints

Small Business Enterprise Product available on GSA Advantage®

Supplier: SP Industries
Description: These flasks have a center neck that is vertical and a side neck that is at a 20° angle to the center.

Supplier: Ace Glass
Description: These round-bottom flasks have angled side necks and [ST] outer joints

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: These round bottom flasks have a single short neck with a [ST] outer joint

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: Rugged spherical reaction flask with 65/40 spherical joint center neck, two 65/40 spherical joint side necks and two 29/42 standard taper side joints

Small Business Enterprise Product available on GSA Advantage®

Supplier: Ace Glass
Description: European style flasks have tapered walls with a shallow bottom for more efficient magnetic or mechanical half-moon shaped paddle stirring

Small Business Enterprise Product available on GSA Advantage®

Catalog Number: (KT294410-0000)
Supplier: DWK Life Sciences (KIMBLE)
Description: Flasks feature a round bottom and a [ST] 19/22 neck joint


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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
To process your orders without delay, please provide the required business documentation to purchase this product.

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* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. VWR will not lift restrictions for residential shipping addresses.

-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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