Chapin International 19049 Industrial Xtreme Tri-Poxy Concrete Sprayer, 3.5-Gallon, Red 3.5 gallon tri-poxy tank for durability and a 4-inch wide mouth opening for easy filling and cleaning Compatible for most professional concrete applications and extreme chemicals including Acetone, naphtha, xylene and toluene (check chemical Manufacturers instructions) Brass pump, wand, nozzle and shut off with lock on feature for durability and easy cleaning Viton seals and gaskets designed to handle a variety of chemicals. Spray/flow Rate (GPM): .5 GPM & 1.0 GPM Unique tri-lock seal feature that locks the pump cap tight