Udor Zeta 40E/GR Pump with Gearbox Max. 10.5 GPM ; Max. 300 psi ; Max. 3600 RPM ; Max. 140 F fluid temperatures Includes gearbox for 4HP to 6.5HP gas engines with 3/4" shafts 1 1/4" inlet ; two 1/2" outlets; 3/4" bypass Weighs 46 lbs. Excellent for cleaning roofs, gutters, porches, sidewalks, etc.