Perforated, upper pan screen serves as a flame arrestor to ensure safe use. Made of chemically resistant Ryton® and brass, the pump base is designed to leave less liquid in the bottom before needing to be refilled. Pushing down on the pump fills the upper pan with a measured amount of liquid. Surplus liquid safely drains back into reservoir, reducing the chance of fire or spill. Choose from corrosion resistant, high-density Polyethylene or 24-ga. Terne Plate steel construction. Galvanized steel Cans are finished in a tough, lead free, chemical-resistant powder paint.