The Perfect Size For Your Shop Matco offers its MMP30P Mighty Microbe w/heater 30-gallon Galvanized Parts Washer. With a shipping weight of only 58 lbs., a sink size of 25-13/16" x 13" x 32-9/16" and a drum size of 19-5/16" x 19-5/16" x 29" this parts washer is ideal for any shop.