Elf / Unifiller model 400 bench top single piston filler, all stainless steel contact and frame construction, cone hopper infeed, air actuated fill and valve mechanisms, 3" diameter piston with a 6.5"+/- maximum stroke, with a 1-1/2" fill nozzle with an air actuated cut-off, with a foot actuated fill switch, unit also has a hand held fill valve assembly with air and product line, with a 1" fill valve, serial number ELFV-114228-001-01, new in 2022, very good condition – as is.