Agilent AX-65 Air-Cooled Diffusion PumpAgilent AX 65 Air Cooled Diffusion Pump The Agilent AX 65 diffusion pump is a high performance, air cooled pump designed with bench top analytical instruments in mind. Its vertical finned boiler and high power provide stable pumping and high helium pumping speed. This pump can be ordered with a cold cap or a dense baffle. The pump includes a fluid level sight glass that indicates the fluid level at all times. Features High performance specifications