All-Fill Inc. Pneumatic 2-Head Volumetric Piston Filler. Model: 525101. Infeed hopper dimensions: 21-1/2 in L x 20-1/4 in. W x 20-3/4 in H. Adjustable heads can move left and right. Current spacing between heads: 8-1/2 in. Piston filling machines have the ability to fill products such as creams, pastes, gels, wax and grease, heavy sauces, and jams. Its 4 wheels allow easy maneuverability. Overall dimensions: 46 in. L x 22 in. W x 69 in. H.