3100 Max PSI at 2.1 GPM powered by EXi875 engine by Briggs & Stratton. PowerFlow+ Technology Dual Mode Cleaning - high pressure or high flow mode. High Pressure mode is ideal for cleaning pavement patio furniture or outside of home. High Flow mode is ideal for reaching second story windows RVs and other hard-to-reach areas. 7-in-1 Nozzle - save time by adjusting pressure setting and applying soap with twist of wrist. Just Check & Add technology - never change oil for the life of the engine. Idle Down Technology - offers 40% quieter operation than other pressure washers. EasyStart technology with maintenance-free axial cam pump. 30ft High-pressure flexible hose. Fold down handle offers compact storage.