He Chapin home & garden backpack sprayer is ideal for the professional landscaper as well as the homeowner. The 4 gallon Poly tank has a 4" Wide mouth opening for easy filling & 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, adjustable poly-cone nozzle & padded shoulder straps. Nitrile seals provide compatibility with fertilizers, weed killers & pesticides.