The H igh Y ield PER formance Flask (HYPERFlask) cell culture vessel has 1720 cm² available growth area on a polystyrene gas permeable surface. Treated for optimal cell attachment and gamma sterilized. Bar coded and compatible for use on Cell Culture Automation Platforms. Solid cap with liner on a straight neck designed for filling with growth medium. The H igh Y ield PER formance Flask (HYPERFlask) cell culture vessel has 1720 cm² available growth area on a polystyrene gas permeable surface. Treated for optimal cell attachment and gamma sterilized. Bar coded and compatible for use on Cell Culture Automation Platforms. Solid cap with liner on a straight neck designed for filling with growth medium.