Three-in-one unit invests under vacuum, casts perforated flasks under vacuum and casts regular flasks under vacuum. The Pro-Cast Vacuum machine dimensions 23" W x 11" D x 13 1/2" H (58.4 x 27.9 x 34.3 cm). Investing is performed on a 10 1/2" x 10 1/2" (27 x 27 cm) platform which can be vibrated to eliminate air and bubbles. Unit accommodates perforated flasks up to 5" (13 cm) in diameter and 7" (18 cm) high. Pressure created by the powerful vacuum unit pulls molten metal into the most intricate patterns. Vacuum assist casting can also be used on this unit with regular solid wall flasks. Unit comes complete as shown. Operates on 110 volts.