The SaltDogg® PRO4000H is a 4 cubic yard poly hopper spreader in the PRO4000 auger family, aimed at contractors and property managers running medium and heavy-duty routes. It works with dump trucks and flatbeds rated at a minimum 17,500 lb GVW and handles bulk salt or a 50/50 sand/salt mix. The 5-1/2 in. steel auger and inverted V keep material feeding to an 18 in. spinner with a 5 to 30 ft spread. Double-wall poly hopper on a corrosion-resistant stainless steel frame and auger trough 12V DC electric or hydraulic drive with independent auger and spinner motors Full-length 5-1/2 in. steel auger feed In-cab control of independent auger and spinner speeds; vibrator control on the electric version only Vibrator, top screens, inverted V, tie downs and remote auger bearing grease kit included Works with bagged #1 rock salt and bulk salt; 2 year warranty, made in the USA Specifications Hopper material: Polyethylene, black Trough material: 304 stainless steel Feed mechanism: Full length 5-1/2 in. auger Spinner: 18.00 in. polyurethane Spreading width range: 5 to 30 ft Chute: Adjustable height with side swing Overall dimensions: 114.80 in. L x 74.00 in. W x 43.50 in. H