850ml polystyrene suspension culture flask with non treated surface and 0 2um vent 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 non-tissue culture treated for suspension cell work. Celltreat non-treated tissue culture flasks are RNase and DNase free. 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.