These tissue culture flasks are made of high-quality, transparent polystyrene, which is processed into a flat growth surface and which is ideally suited for microscopic observation.

• Accessibility of all corners with serological pipettes and cell scrapers
• Large labelling fields on both sides of the neck, with printed white scaling on one side and engraved scaling on the other side to facilitate use of the product
• High stability, reducing the risk of contamination; stacking edge for secure positioning on top of another
• Optimised, canted flask neck and anti-drip edge for easy tilting of the medium and reducing the risk of contamination due to spillage
• Lot no. and expiry date are printed on each flask which allows for easy traceability after removal from the packaging

These tissue culture flasks are provides with three different growth surfaces and can be clearly identified using the coloured lids:
Red = adherent cells
Yellow = sensitive, adherent cells
Green = suspension cells

The filter cap has a membrane with a pore size of 0.2 μm, which ensures constant, sterile gas exchange. Due to the hydrophobic filter properties, the risk of contamination is minimised at the same time.

The two-position screw cap allows for the gas-tight sealing of the flasks when in the closed position, ion, while in the ventilation position cells can be cultivated with even gas exchange (arrows point up and down). A recognisable click confirms that the cap has been secured against falling off during incubation. A gap in the ribbing and arrows on the cap allow for simple haptic and visual checking of the closure position when working and in the incubator. There is no need for lengthy manual checking of stacked flasks in the incubator to ensure the caps are in the right position.