Filter Unit SFCA 0.45 Mic., 115 ml (C08-0509-479)

Low-profile design; polystyrene Three membrane materials available: Cellulose Nitrate (CN), Surfactant Free Cellulose Acetate (SFCA) and Polyethersulfone (PES) Membrane diameter 50 mm with surface area 17.3 cm 2 Provide fast flow rates Graduations on upper and lower chambers, padless membrane support plate Gamma-sterilized, non-pyrogenic and non-cytotoxic, for use with sensitive cell lines Single pouring/venting spout provides simple/convenient handling and minimizes potential contamination Nalgene 121 Filter Units with Cellulose Nitrate (CN) Membranes (4619A50, A54) Triton-free Excellent wetting properties Single-use units can be used for cold sterilization, clarification, prefiltration and ultracleaning of buffers and other aqueous solutions, as well as microbiological media. Nalgene 122 Filter Units with Surfactant-Free Cellulose Acetate (SFCA) Membranes(4619A58, A62) Low protein binding Minimal clogging with no loss of specific proteins Nalgene 124 Filter Units with Polyethersulfone (PES) Membranes (4619B01) Low protein binding Inherently hydrophilic No external wetting agents/surfactants Low extractables Greater chemical resistance than cellulosic (acetate, nitrate) membranes