Air operated 1:1 transfer pump for dispensing a wide variety of fluids. Choice of materials makes it compatible with many more fluids, compared to air pumps which primarily pump oil Built-in 2" bung adaptor for direct attachment on drums with 2" opening Air supply is provided via a ball valve connected to an air regulator limiting max. air pressure to 100 PSI (7 BAR) Complete with suction tube with check valve for use on 50–205 litre drums