Ball Lock Keg Spear (w Nitrogen Bulb Injector)

This spear has a ball lock post for the liquid out so that any standard liquid disconnect can attach to it (either a tap directly or a line to a remote tap like in a kegerator).

The gas inlet consists of a valve with a pin that pierces a gas bulb when it is screwed onto it inside the black plastic cover.

The bulb used can be pure Nitrogen (2g bulb) for a stout style cascading head, Nitrous Oxide (8g bulb) for a thick creamy head like an espresso martini or you could insert an unthreaded 8g CO2 bulb (for carbonating water etc, do not try to dispense beer like this as it's unregulated high pressure and will just pour foam).