The RYOBI Electrostatic Nozzle Replacement 3-Pack is the ideal solution for replacing your existing RYOBI 18V 1 Gal. and 1/2 Gal. Electrostatic Sprayer nozzles or to keep on hand when you need them. The pack comes with 3 nozzle settings: low, medium and high. The low nozzle is 65 microns and sprays up to 2 ft. This is ideal for precise spraying in small indoor spaces. The medium nozzle is 85 microns and sprays up to 5 ft. This is a versatile nozzle that allows the user to spray medium to large objects and areas. The high nozzle is 160 microns and sprays up to 10 ft. This is best for outdoor use and for priming the unit. The RYOBI Electrostatic Nozzle Replacement 3-Pack is only compatible with The RYOBI 18V ONE+ 1 Gal. and 1/2 Gal. Cordless Electrostatic Sprayers.