3-stage filtration system. Shut-off with padded cushion grip, built-in filter and Viton® seals. Padded shoulder strap to accommodate a full backpack comfortably for hours. Piston pump. Multiple nozzles included to distinguish spray pattern of volume of spray- up to 35 psi. Pump handle can be attached to either side of unit for left or right hand pumping. Wand clips onto base rail when not in use. Ideal for home and garden, turf/landscape and pest control industries. Works well with fertilizers, fungicides, herbicides, pesticides and general watering.