Jumbosep Centrifugal Membrane Insert 30000 MWCO. Red. Concentrates 60mL to 5mL in \<30 minutes. Low-protein binding OMEGA modified polyethersulfone membrane. 15.2cm2 filtration area. 0-40[degree]C temperature range. 3000g maximum force. 60mm outside diameter. Nonsterile sanitizable. 12/pk.