PureFlo SKL Series Capsule, Highly Asymmetric Dual Layer PES 0.65μm / 0.2μm PES Sterilizing Grade Hydrophilic Membrane, Internal Filter Length 5.0", L-Size, Filtration Area 2,550 cm2, ¼” - ½” Tapered Hose Barb (Inlet/Outlet), Factory sterilized by ETO