The Offshore Kit includes a seal and o-ring kit, annular rings, reversing valve spool, a section of nylon high pressure tubing, high pressure fittings, acid and alkaline membrane cleaning solutions, and the tools and instruction manuals required for a Clark Pump rebuild in the field. Be sure to order the correct Offshore Kit for your system, this kit fits all Newport 700, Newport 1000, and Monterrey 1000 systems.