Ridgid 85957 Model TP-4000 4 HP Utility Transfer Pump. The TP-4000 is equipped With a premium Honda GX series OHV Engine for easy Starts and long life. Also designed With a heavy gage roll Cage for durability and stability. The intake Flapper allows for the pump to retain prime. This Ridgid Utility Transfer pump Handles up to 1/2-Inch solids. Other features include a cast iron pump and Impeller for abrasion resistance. Low oil shut down prevents Engine damage. The Maximum suction Lift is 25-foot.