Buyers Products 30 Gallon Central Hydraulic System is designed for quick and easy installation. The system features pneumatic, in-cab controllers which eliminate the need to plumb multiple hydraulic lines into the cab. It also saves cab space and keeps the heat and noise outside. The system's design cuts down install time. Just install the reservoir assembly and plumb the flow and functions. It includes everything you need to set up a 6-function plow, spreader, and hoist system. All directional valves and spreader controls are mounted directly on the tank to streamline plumbing and make service simple. The 30 gallon reservoir assembly with valve enclosure is built from 304 stainless steel to stand up to road grime, salt, and inclement weather. It includes an in-tank return filter assembly, filler-strainer breather cap assembly, and a shielded sight temperature gauge. The valve enclosure features a latching stainless steel lid to provide the spreader, hoist, and plow valves additional protection. The system is ideal for medium to heavy duty applications. All Systems Include: Proportional spreader operation with compact 2-function or 3-function (GPS versions only, includes auger-conveyor, spinner, and pre-wet functions) controls. Proportional pneumatic plow and hoist controls. 11 GPM 3-way plow lift/4-way plow angle with two port reliefs. 30 GPM 4-way DA dump hoist with down port relief and power beyond. Color TFT-LCD touchscreen display. Optional Additions:GPS with capability for pre-wet and liquid spray functions in one convenient controller, including programmable blast (1-30 seconds) and low pressure pre-wet indicator. Please contact Customer Service for further options.