This is a Repairable/Rebuildable Row Cleaner Cylinder with bellows for cylinder rod protection and reduced dirt exposure to the seals. Farthermore this cylinder has high quality seals that last approximately 4x that of non-repairable cylinders. Fits most row cleaners on the market. Exceptions include Older (Pre 2024) MartinTill ACCR and AgFocus Primo and Ninja row cleaners. Newer (Post 2024) MartinTill ACCR with 3 hole mount work.