No hoses, compressors, or wires. Sprays any thinned liquid. Portable industrial sprayer without the usual encumbrances. Utilizes the same principle as commercial spray guns. Replaceable power pack contains a liquid propellant that will spray up to 30 ounces of paint or other sprayable material. The precision preset spray head assures a perfect spray pattern. Snap on spray head improved to include 3 interchangeable spray heads: Red - Heavy, White - Medium, and Blue - Fine. Ideal for maintenance and production jobs throughout the shop. Extra jars and caps available. Not recommended for waterborne paint.