Aluminum hopper dredge box has a 2" dredge inlet. Spray bar has built-in adjustable water flow and pressure port controls. Comes with sluice extension. Will fit any 10" wide sluice. With this box you can convert any 10 inch hand sluice into an efficient highbanker or dredge to increase productivity. The inlet connection is 1.5" and the spray bars are 1." Approx. shipping weight and dimensions: 16 lbs. 20x20x15 inches. Proudly manufactured in the USA!