All Fill Inc. Volumetric Piston Filler.1/3 to 87.8 Fl. Oz. per single cycle. Model: 305. S/N: 305101. Stainless steel construction. Product Cylinder: 3 in. dia. x 12 in. L. The model 305 is a versatile single head piston liquid filler for liquids, creams, pastes and other viscous products. During a filling cycle, a piston travels back to draw product from the hopper into a precision machined cylinder, then extends forward to fill. Rotary valve. Air service. Control panel. Outlets: (1) 1-1/4 dia. pipe. Overall dimensions: 32 in. L x 19-1/2 in. W x 16-1/2 in. H.