The contemporary design and quiet operation compliment any office environment. Clean & Simple Ultrasonic Systems are available in 2 sizes with a full selection of accessories to meet your specific needs. The 3-gallons system (shown) holds a standard selection of instruments or full-size cassettes. Tuttnauer also offers the smaller 1-gallon system which holds 2 half-size cassettes. Note: Image shows 3-gallon and 1-gallon models, sold separately. See tabs for more information.