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PYREX® Fernbach Culture Flasks, Corning®

Supplier: CORNING CA

4427-2XL 4420-2XL 4426-2XL 4423-2XL 4425-2XL
Fernbach-style culture flasks are ideal for culturing organisms that require a large surface area-to-volume ratio, and in serum production. Large marking spot allows for accurate labeling and easy identification.

Baffled bottom flasks have three baffles at center on outside for maximal oxygen transfer to culture medium. Flasks that accept rubber stopper (not included) have heavily beaded rim to protect against chipping; also accept cotton plugs. Light blue phenolic screw caps are autoclavable and PTFE-lined. Orange plug seal cap is autoclavable and linerless, with drip-free pouring ring.

These culture flask are made of Pyrex® borosilicate glass.

Caution: Do not use this flask on a heat source smaller than the base of the flask. Uneven heating of the flask could cause breakage.



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Plain Bottom Flasks
Supplier No. Catalog Number Unit List Price Quantity
100 mm 100-400 Phenolic Screw Cap 4426-2XL 4426-2XL F-4426-2XL Case of 1 Retrieving
68 mm No. 13-14 Rubber Stopper 4420-2XL 4420-2XL F-4420-2XL Case of 6 Retrieving

Baffled Bottom Flasks
Supplier No. Catalog Number Unit List Price Quantity
100 mm 100-400 Phenolic Screw Cap 4427-2XL 4427-2XL F-4427-2XL Case of 1 Retrieving
45 mm GL45 Polypropylene Plug Seal Cap 4425-2XL 4425-2XL F-4425-2XL Case of 3 Retrieving
68 mm No. 13 Rubber Stopper 4423-2XL 4423-2XL F-4423-2XL Case of 3 Retrieving


Capacity 2.8 L
Dimensions 200O.D. x 230H mm
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