These Falcon® 96-well cell culture inserts feature a surface rendered permanently hydrophilic via a unique vacuum-gas plasma tissue culture treatment process. This treatment process is produced in a closed, highly controlled environment ensuring a consistent treatment surface. Lid and feeder tray are made of polystyrene. 3.22mm PET (polyethylene terephthalate) membrane. Choose between 1.0, 3.0 or 8.0µm pore sizes. Tissue-culture treated. Sterile, with lid.