The Sanke D coupler is the standard size in North America for Sanke Kegs, but it is advisable to consult with the keg retailer prior to acquiring the coupler.
To connect your beverage lines to a Sanke coupler, a tailpiece assembly will be necessary.
Aluminum CO2 Tank - 5 lb
Clear Vinyl Tubing - 3/8" ID
Ultraflex Tubing - 5/16" ID Gas Line
Bevlex Thick Wall Beverage Line - 3/16" ID by 7/16" OD