Chapin Industrial 3-Gallon Poly Viton Concrete Sprayer 2218 3-gallon concrete sprayer designed for tougher spraying applications Spray handle features a lock-on setting for continuous spraying Chemical-resistant viton seals and gaskets Female brass fan nozzle attaches directly to the spray handle or extension; 0.5 gpm and 1.0 gpm included 3-gallon poly viton tank