The R-Series 4-11 kW family delivers optimum performance and easier maintenance, all in a robust, innovative package. Improved innovations such as leak-free PTFE hoses with O-ring face seals, a next-generation airend, and a reduced number of components continues our legacy of reliability in a compact design that fits virtually any application environment. And with the optional Total Air System (TAS) included, you'll get clean, dry air in a cost-effective single package.