Forney 75166 Pressure Washer Accessories, Nozzle, Multi-Regulator, 0-Degree To 80-Degree, 1/4-Inch FNPT Inlet, 3,200 PSI Used when high and low pressures are needed This nozzle easily switches between a solid or flat spray patterns without having to change nozzles The low pressure mode is great for the introduction of downstream soaps The spray pattern adjusts from a solid 0 degree to a flat 80 degree spray pattern with a twist of the nozzle head