It's the new 23 litre corny keg with a tap and an injector already added. Takes the standard cornelius fittings
The injectors are great! They take the large co2 bulbs, bigger than the standard soda syphon one. Three bulbs will empty a keg full of water, or a keg of flat beer. IF your beer has conditioned for a few days you'll need less gas.
You're going to have to add a pack of bulbs to this order so don't forget!