Our authentic British beer engine is manufactured by Harry Masons. This unit is a 1/4 pint pull with a cooling jacket and is designed to clamp on to a bar surface for easy installation. Comes with Engine Cylinder Nut, Engine Cylinder Tail Barb, compression washer, and drip tray. Needed to serve from a cask but not included are: a cask tap, cask plastic nut (k312), plastic tail (k313), cask sealing washer (k310), and 1/2" tubing. Optional sparkler (K307) is not included. The cooling jacket can be used by running cool water through the jacket with 3/8" tubing.