AS7190TO: 28", Orbital Head, 22-Gallon, Traction-drive, 37" Squeegee Assy, 50-Amp Shelf Charger, (4) 120 Ah TPPL Batteries is an automatic scrubbers: fang™ and as series in the Advance, Nilfisk and Viper floor-care range available through A.J. Gates. The listed squeegee width is 37.0 inches. The listed tank capacity is 22.0 gallons.