300cm2 polystyrene tissue culture treated flask with 2um vented cap rnase and dnase free sterile 18 cs

CellTreat Brand tissue culture products offer consistent performance at a reasonable price. Flasks are made from crystal clear polystyrene and are tissue culture treated for optimum cell attachment. The vent cap with 0.22um membrane means you can tighten the cap down and still achieve excellent gas transfer. Sterile (gamma irradiated). Packed in resealable bags, three flasks to a bag to aid in maintaining sterility.