Compact unit has patented mixing chambers to allow for an even flow of blasting material from 1 to 6 bar. Large viewing pane with an optional special coating is available to increase service life. Can be operated with 1 or 2 tanks in different combinations corresponding to the grain sizes required. Tank selector switch is situated within the blasting chamber. 3-year warranty.Dimensions: 9.85"H x 13.40"W x 15.76"D