The Duro K255 is an iconic, "bulletproof" shallow well piston pump (often branded as Pompco or Southern Industries)
The Duro K255 is a manual, single-action piston pump designed for transferring medium-viscosity fluids such as oil, diesel, antifreeze, and non-corrosive industrial lubricants. It’s a popular choice for workshops, farms, and small manufacturing setups where an electric pump is unnecessary or impractical.
Most hardware stores do not stock Duro K255 parts. Use the manual’s part number table to order online. Cross-reference with brands like , Comet , or General Pump – many parts are interchangeable.