Pneumatic Single Piston Filler with Hopper. 316 stainless steel. Dispensing capacity: 20 cu. in. (approx. 11 oz.). Hopper diameter: 23 in. Pneumatic actuator: 2 in. dia. x 13 in. L. Plunger: 1 in. dia. Plunger travel adjusted by (1) 4 in. dia. rotary wheel. Air supply controlled by Wilkerson filter-regulator-lubricator. Pump mounted on Frame with (4) casters for easy positioning. Inlets/outlets (1) 1-1/2 in. Q-line. Overall dimensions: 58 in. L x 24 in. W x 70 in. H. Unit was last used to dispense cheese. Can be used to fill/dispense other viscous products.