Our 6 models provide Dual Gallonage "JUMP" and Constant Flow abilities. These nozzles just need a simple turn to easily adjust from a straight narrow stream to a fog. The nozzle come in different GPM, excellent for firefighting or at the fire house for truck and grounds maintenance. Kochek Specialty Nozzle NZ024 offers 4 Spray Diameters by rotating the tip to the desired setting. Kochek Specialty Nozzle NZ027 is an adjustable Fan Stream Nozzle and reaches distances up to 80 feet.