Corning® U-shaped Flasks

Cells won’t notice the improvements in the Corning Flasks. You will.

Overview

Corning's U-shaped flask design, with a canted neck, improves usability while maintaining the ideal environment for cell growth. Corning U-shaped flasks have rounded shoulders for an easier grip and better access when removing or tightening the cap. The new ergonomic shape also reduces the number of corners, improves cell scraping, and allows the use of a larger pipet.

Corning's U-shaped flasks have sustainability advantages. The 75 cm²uses 23% less plastic than our standard T-75 flasks, and the 150 cm² uses 30% less plastic than our standard T-150 flasks.

Corning U-shaped flasks are available in three growth surfaces – 75 cm², 150 cm², 175 cm², two neck styles – canted and angled, and three cap styles – plug seal, vented, and phenolic style.

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About

Flask Cap Styles

Plug seal caps feature one-piece linerless construction and are designed for use in closed systems, providing a liquid- and gas-tight seal. When loosened, this cap can also be used in open systems. This cap design was a Corning innovation that first appeared in 1974.
Phenolic-style caps are designed (when loosened) for use in open systems requiring gas exchange. With the caps slightly loosened, gas is exchanged between the environments inside and outside of the flask.
Vent caps contain a 0.2 µm pore, hydrophobic membrane sealed to the cap, isolating the container it is placed on from the environment while providing consistent gas exchange. These caps are highly recommended for use in all CO₂ incubators, especially for long-term use. The vent cap was a Corning innovation that first appeared in 1988.

Plug seal caps feature one-piece linerless construction and are designed for use in closed systems, providing a liquid- and gas-tight seal. When loosened, this cap can also be used in open systems. This cap design was a Corning innovation that first appeared in 1974.
Phenolic-style caps are designed (when loosened) for use in open systems requiring gas exchange. With the caps slightly loosened, gas is exchanged between the environments inside and outside of the flask.
Vent caps contain a 0.2 µm pore, hydrophobic membrane sealed to the cap, isolating the container it is placed on from the environment while providing consistent gas exchange. These caps are highly recommended for use in all CO₂ incubators, especially for long-term use. The vent cap was a Corning innovation that first appeared in 1988.

Flask Neck Styles

Canted neck flasks allow easier pouring and improved access to the flask for pipetting or scraping. The canted neck design was a Corning innovation that first appeared in 1974.
Angled neck flasks improve pipet access and reduce medium sloshing into the neck. This design was a Corning innovation that first appeared in 1988.

Canted neck flasks allow easier pouring and improved access to the flask for pipetting or scraping. The canted neck design was a Corning innovation that first appeared in 1974.
Angled neck flasks improve pipet access and reduce medium sloshing into the neck. This design was a Corning innovation that first appeared in 1988.

Key Features

Key features of Corning U-shaped Flasks

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U-shaped flasks have fewer corners for easy cell scraping
Rounded shoulders improve grip and access when removing or tightening the cap
Canted neck for easier pouring and large pipet access
Optimized cell growth area
Stable, stacking design
Large, clear viewing surface

U-shaped flasks have fewer corners for easy cell scraping
Rounded shoulders improve grip and access when removing or tightening the cap
Canted neck for easier pouring and large pipet access
Optimized cell growth area
Stable, stacking design
Large, clear viewing surface

Order Now

Key Features of Corning® CellBIND® U-shaped Flasks

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The Corning® CellBIND® surface enhances cell attachment under difficult conditions, such as reduced-serum or serum-free medium, resulting in higher cell yields. This technology uses a microwave plasma process for treating the culture surface, rendering it more hydrophilic (wettable) and increasing surface stability.