1. material, casting, it is made in shape, more durable and environmentally .2. Food grade 304 probe material, NSF rubber seals, to health safety.3. New design for internal structure, to more smooth for gas inlet and beer outlet.4. An perfect necessity for a place where you want to drink a draft of deer, such as a bar, hotel, restaurant.A keg is a device attaches to a beer keg by clicking on internal contents. Other beer equipment, such as dispensers and mixers, can be connected to the coupling, helping to maintain the right level of carbonation and pressure depending on the brewing.These are just four types of keg in our store. Each of , as a rule, is suitable for a certain kind of barrel and brewing beer.Specification:Nex Nut: G5 / 8 BSPColour:SilverMaterial:metalSize:about 25.2*9cmHose fitting Dimensions: 8 mm Male PortPackage Contents:1*Keg connectorOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.