Chapin 1352 3-Gallon Industrial Viton Tri-Poxy Steel Heavy Duty Sprayer For Industrial Chemical Applications (1 Sprayer/Package) Durable 3-Gallon Tri-Poxy tank with a 4-inch wide funnel mouth opening for easy filling and cleaning Compatible for most professional applications, suitable for homeowners too (check chemical manufacturers instructions) Brass wand, nozzle and shut off with lock on feature Viton seals and gaskets designed to handle a variety of chemicals (check chemical manufacturers instructions)