Chapin International 61950 Chapin Tree/Turf Pro Commercial Backpack Sprayer With Swing Away Handle for Fertilizers, Weed Killers and Pest Control, 4 gal, Translucent White 4-Gallon 4-inch wide mouth opening, translucent tank for easy filling and cleaning Compatible with common fertilizers, weed killers and pesticides 3-Stage Filtration system with in tank removable/cleanable filter Cushion grip poly shut-off and swing away pump handle Padded shoulder straps to accommodate a full backpack for hours