Castrol offers Smooth Flo hand lift pump. Smooth Flo is a versatile pump, engineered for trouble free use on Castrol 50 lt containers. There is a heavy-duty steel suction tube with the pump head, made from high-density polyethylene and a unique bung adaptor. The standard bung adaptor can be slid over the pump, when using on containers with external threading. The pump is available in two variations: with rigid steel spout, with 48º (1220 mm) discharge hose fitted with curved metal spout at discharge end. The pump head has provision for draining back excess oil into the container, when using the pump with standard bung adaptor.