Products Membranes Membranes Ultrafiltration Ultrafiltration membrane 1.0 mm UF 1.0 mm hollow fiber membranes with log 4 retention for Virus Microfiltration Microfiltration membrane 1.0 mm MF 1.0 mm hollow fiber membranes with log 7 retention for bacteria Microfiltration membrane 0.8 mm MF 0.8 mm hollow fiber membranes with log 7 retention for bacteria