The CHAPIN ProSeries back pack sprayer is ideal for the professional landscaper as well as the homeowner. The 4 gal poly tank has a 4 in wide mouth opening for easy filling and cleaning. Featuring a 3-stage filtration system to prevent clogging, a translucent poly tank for viewing of fluid level, poly wand, cushion grip poly shut-off, brass nozzle and padded shoulder straps. Comes with a three-piece nozzle kit. Viton seals provide compatibility with fertilizers, weed killers and pesticides.