SURFACE CLEANER HAS DUAL WATER JETS THAT SPIN RAPIDLY, BREAKING UP DIRT AND GRIME WITHOUT STREAKING OR STRIPPING SURFACES. GREAT FOR CLEANING GARAGE FLOORS, DRIVEWAYS, PATIOS, SIDEWALKS, AND DECKS. MAX PRESSURE 3200PSI, MAX FLOW 4GPM, MAX TEMP 140 F, INLET M22-14MM. ROTARY DIAMETER 15". WORKS WITH GAS AND ELECTRIC PRESSURE WASHERS..