PES Membrane Capsules are used to filter high purity water, ground water, compatible chemicals, pharmaceuticals, and tissue culture media. Ideal for removal of bacteria and other sub-micron particles. Polypropylene (PP) housing available with PTFE or PES membrane, or PP depth media All-polypropylene housing is thermally fused and offers broad chemical compatibility; diameter is a standard 78 mm Capsules are sterilizable by autoclave or ethylene oxide (EtO); Max operating pressure is 57 psi (3.9 bar); max operating temperature is 140