The Chapin Industrial Acid Staining Sprayer is specifically designed and equipped to handle the acids for acid staining and cleaning associated with acid staining. The 2-gallon translucent poly tank comes with a wide 4-inch mouth opening for easy filling and cleaning, poly shut off and an adjustable ceramic poly cone nozzle that sprays a coarse stream to a fine mist. Featuring acid and chemical-resistant seals and gaskets, and pressure relief valve.