The Chapin Horticultural Vinegar Backpack Sprayer is perfect for organic weed control. Its tough seals are vinegar-resistant, tested specifically for use with horticultural vinegar. The 4-Gallon translucent poly tank has a 4-inch wide mouth opening for easy filling and cleaning. It features a 2-stage filtration system to prevent clogging and poly shut-off with 2 nozzles for a variety of applications. It also comes with padded shoulder straps that fit the sprayer close to the back for comfortable spraying and a standard left-hand pump handle.