Visit www.therobucket.com for more info or call us at 3155324003. We have three different buckets available, which process between 5 and 20 gallons of sap per hour. This ad is for your RB-5 model which can process 5-10 gph of sap at 50% water reduction. Turn 3% sap into 6%! Runs off 110 volts and comes ready to go right out of the box. Simply stick the 3/8" tube into your sap you want concentrated, and pure water and concentrated sap comes out the other side.