Introducing the 6000 seroes which includes WP6305 Basic which has a 4-stage, water cooled direct drive for ideal medium of air. It features its unique water cooling system with individual cylinder/inter-stage cooling and a direct water cooling for cylinder and cylinder-valve. For its complex protection in terms of temperature and pressure, it has an available sensor in every stage. It has also maximum water inlet that has the temperature of 40°C. Plus, the unit is certified 100% compressor check having a final pressure of 3.1 upon inspection. Its durability is also test for its can withstand long duration of working hours plus an additional guarantee of a minimum of 25 years. A trouble free operation is well observed even at undesirable condition such as 55°C ambient temperature.