This handsome 110v, rectangular shaped unit is 6.9" x 6.4" x 9" overall with a 2 Qt. Tank measuring 5.9" x 5.4" x 4". The tank of the Q-90 will easily hold large valve or regulator bodies. It develops 160 watts of cleaning power and has an automatic timer and pilot light. Additional Info: Perhaps the most effective way to clean small parts including those from scuba regulators / valves is by ultrasonics. This requires a special machine which generates high-frequency vibrations (beyond the range of human hearing) within certain liquid solvents. Forceful bubble impulsions bombard virtually every surface of any material submerged in the liquid; this cavitation literally blasts the contaminants off the parts, producing a state of microscopic cleanliness! It silently removes grime, rust, oil, dyes and grease from metals, ceramics, glass, plastics, rubber and synthetic fibers. However, ultrasonics can be harmful to some composite materials and a few elastomers, so manufacturers' manuals should always be consulted with regard to compatibility. Because this process cleans so thoroughly, it's an approved method for oxygen cleaning. Another virtue of ultrasonic cleaning is that the vibrations can be passed at undiminished strength from one liquid to another. Thus, if water is placed in the tank of the machine, the cleaning activity will be transmitted to any solvent contained in an auxiliary pan or vessel placed into the water. If one has extra pans of selected solvents, a single machine can utilize a variety of cleaning agents by merely exchanging pans! All Global cleaners can employ this reciprocating pan system and we recommend it when acidic solvents must be used. (Each machine includes detailed instructions on ultrasonic cleaning). Order 43072 for 220 volt version.