The Valley Industries 30″ pistol grip spray gun features a #18 Orifice nozzle that adjusts from fine mist to straight stream, allowing for use in many applications at a variety of distances. 18′ vertical & 20′ horizontal spray. 350 PSI Max & 6 GPM Max flow. Ideal to use with 1 to 2.2 GPM pumps. A pressure regulator is recommended for pumps over 2.2 GPM. 3/8″ hose barb connection. Popular applications include lawn spraying, spot spraying, greenhouse, roof spraying or any other applications related to spraying herbicides & insecticides. Adapts to most sprayer brands. Spray performance may vary based on the equipment being used. Not for use with high pressure washers. Universal replacement.