Material: flat bottom flask orange polypropylene cap polycarbonate (medical grade) polyethersulfone membrane polypropylene cap wide-mouth wide-mouth neck description flat bottom, Erlenmeyer flask Sterility: sterile Feature: cap closure type Vented cap luer lock male Packaging: pack of 1 case of 3 Mfr.: Corning, 431512 Tube Size: 50 mL Tubing I.D.: 1/8 in. Volume: 2 L Working Volume: 50 mL Pore Size: 0.22 μm