This Polycap TF 75 PTFE filter device by Whatman is an excellent disposable encapsulated filter with a 0.2µm pore size and 1/2 inch stepped barb fittings. The hydrophobic PTFE membranes housed in a polypropylene capsule are designed for use with solvents and aggressive solutions. The filter is fully autoclavable and integrity-testable for sterile applications. It is manufactured under very clean conditions in a Class 10,000 clean room and under an ISO Quality System. The maximum pressure is 60psi (4.1 bar). Fittings: 1/2 inch Stepped Barb. Filtration Area, Capsule: 75mm. Pore Size: 0.2µm. 1/Pack. Whatman #: 6710-7502.