2 Head Piston Filler. 30 to 40 Bottles per minute. 12 to 20 oz. Carbon steel Frame with stainless steel conveyor. Variable Speed. Motor 1/2 hp, 220/440 V. Distance between valves 5-3/4 in. Discharge dia. 3/4 in. There is a bar that moves the bottle into position. Once is placed under the valve, valve opens and fills product. Product is fed into stainless steel tank that is on top of the 2 piston valves. Can only fill very viscous products like mayonnaise. (XMR23a).