Outstanding Performance Generates up to 4200 PSI of water pressure and 2.6 GPM of water flow for handling even the most stubborn grime quickly and effortlessly. N-COR pump is durable, non-corrosive and maintenance-free. Snow Foam Lance Directly sprays foam. Cleansers don't pass the pump for longer pump's life so you can use chemicals like bleach, vinegar and etc. Thicker and dense foam stays on the surface longer for better cleaning performance. 4 Universal Tips The 0 tip delivers super high pressure for dissolving stubborn substances on hard surface.