Roundup 190314 Backpack Sprayer for Fertilizers, Herbicides, Weed Killers & Insecticides, 4 Gallon 4-Gallon sprayer meets all your spraying needs (controlling weeds and pests, growing flowers and vegetables and cleaning decks and siding) Heavy-duty poly wand with shut-off featuring a comfort grip, lock for continuous spraying and an in-line filter Viton seals and gaskets throughout the pump and shut-off for long lasting chemical resistance Adjustable padded straps with Waist belt and built-in lumbar support Includes 3 nozzles for versatility: poly adjustable, high volume fan, and low volume fan