Use this economical, general-purpose, suction spray gun when spraying light to heavy viscosity materials. The gun includes a one-litre aluminum cup, 1-1/2-millimetre needle, and 1.8-millimetre nozzle. It has a 1/4-inch air inlet and fluid delivery of 13 cubic feet per minute at 45 psi. This is for use with 29-603 and includes a 20-616A cup.