225 cm Cell Culture Flasks

• 370 mL maximum working volume
• Angled or canted neck style
• Rectangular or traditional flask style
• Certified non-pyrogenic
• Sterilized by gamma irradiation
• Optically clear virgin polystyrene material

Corning cell culture flasks are manufactured under strict process controls guaranteeing consistent product performance.

Manufactured from optically clear virgin polystyrene, they are treated for optimal cell attachment.

Rectangular flasks have a ramp from the bottom to the canted neck for easy pouring and pipette access. Most canted neck flasks also have an anti-tip skirt for increased stability.

Angled neck flasks utilize the entire bottom area for cell growth. This design saves space and reduces medium sloshing into the neck.

Patented Corning CellBIND® surface treatment prmotes enhanced cell attachment. CellBIND cell culture surface may eliminate the need to use poly-D-lysine or other coatings to improve cell attachment.

Three styles of caps are available: Plug Seal (Plug), Phenolic-Style (PS) and Vent Cap (Vent).

Vent caps contain a 0.2 µm non-wettable membrane sealed to the cap, providing consistent, sterile gas exchange while minimizing the risk of contamination. Caps are recommended for use in all CO₂ incubators, especially for long-term use.

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.

1234L12 is an expanded surface flask with 235 cm² available growth area and 250 mL maximum working volume.