... 3.light weight and easy install 4.high efficiency 5.Hot sale ! 10% discount Features:1) Applications: 5.5kW - ... strong applicability etc . It is widely applied to engineering machinery , air compressor, vehicle separation , construction machinery separation , hydraulic transmission oil ... size3 . inlet/outlet temperature of oil4 . oil flow5 .cooling-air flow Best sell screw air compressor oil cooler