94k Short Block Intensifier as used on our 94k pumps. Completely interchangeable with Flow 87/94k intensifiers - but upgraded! - hydraulic piston (3 bands for better stability; - improved/interchangeable check valve outlet design (designed for better water flow); and - better production processes used on check valve bodies and hp cylinders for much longer life. Usually several are in stock and ready to ship. Rebuild service of old intensifiers is also available with quick turnaround.