Drivers Air Pump, Water Pump and Engine for dredge diving, whole system. I had this built for me to dredge with Hooka System, I used it once but I am too old to dive now. This unit was just checked out by my tech and is ready to go. It is a INTEK PRO 6.5 Briggs and Stratton with a 2.5 ' X 2' water pump, pumps 310 gal per min. Capable of 180 foot lift., plus the AIR PUMP to support several divers using Hooka System , approx 30 drive. $ 700.00 F.O.B. AKRON, Ohio Gordon. 330-633-9125