It's sort of hard to discuss without part numbers, but the two pieces on the right replace your barbed fittings on the sanke coupler. Then, you convert your liquid and gas lines to the female flared fittings. That way, you can swap out the threaded soda QDs pictured with the threaded fittings you put on your sanke coupler. All of my lines have the flared swivel nuts on them for ease of swapping out couplers.