The Chapin ProSeries Backpack Sprayer is ideal for the landscape and turf professional but easily used by the homeowner too. The 4 Gal. poly tank has a 4 in. W mouth opening for easy filling and cleaning and a diaphragm pump that works well with wet table powders. 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 3-piece nozzle kit. Viton seals provide compatibility with fertilizers, weed killers and pesticides.