Use a Sodastream bottle to dispense/carbonate your kegs. This is the ideal unit for the small user who only consumes up to a couple of kegs a month & is looking for cheap viable alternative to expensive bottle rental. Also great for party keg set ups.
This adaptor, unlike many inferior ones on the market, has been built with the correct threads to connect your regulator.
WARNING: Be careful not to over tighten, as you may cause damage to the sodastream bottle inlet valve.