Chapin 21250XP 3-Gallon Professional Farm & Field Viton Sprayer For Fertilizer, Herbicides and Pesticides, 3-Gallon (1 Sprayer/Package) 3-Gallon translucent poly tank with 4-inch wide mouth opening for easy filling and cleaning Compatible with common fertilizers, weed killers and pesticides Adjustable nozzle for fine mists to coarse streams Shut off has lock-off feature to prevent accidental disharge Pressure relief valve