Whatman 2702T Polycap TF 75 PTFE Membrane Capsule Filter with FNPT Inlet and Outlet, 60 psi Maximum Pressure, 0.2 Micron (Pack of 5) 138.23. Get Quotations. Whatman 2700T Polycap TF 75 PTFE Membrane Capsule Filter with FNPT Inlet and Outlet, 60 psi Maximum Pressure, 0.1 Micron (Pack of 5) 190.45. Get Quotations.