Industrial weld cleaning system engineered to clean MIG, TIG and spot welds on aluminum Safety and productivity features minimize consumable use and provide economical cleaning and passivation of welds Built-in fume elimination system (requires compressed air line) Switchable output. AC Mode: cleaning & marking - DC Mode: polishing & etching Redesigned pump and tank for maximum efficiency With the use of special marking kits (sold separately), can also mark stainless steel and titanium surfaces. Unit includes 90 Tungsten insert (1), Cleaning pads (3 x 10/pk), Clamp ring for cleaning pad (1 x 10/pk), Carbon fiber micro-brush (1 x 5/pk) & Spare brush adaptor for large wand Reduced toxicity; obtain ASTM passivized welds without use of highly dangerous and corrosive nitric acid and hydrofluoric acid Hose Length 13 ft. Input 120 V AC, 50/60 Hz, 4.0 A Tank Capacity 64.2 oz. Voltage Rating 120 V Weight 41 lbs.