RELIANCE 5.5 - 1/2HP Double Piston Compressor Rebuild KitAll piston, vane and diaphragm air compressors require a "rebuild kit" every 2 to 6 years depending on use. Over time, the piston, vanes, diaphragms, cups, sleeves, rings and other internal parts will wear until eventually your system loses pressure and air flow. These rebuild kits will quickly and easily bring your compressor and the entire system back to like new condition. Each rebuild kit will work regardless of voltage. Please note, each rebuild