“D” system is the most common system available in the US, also known as American Sankey. It is used by all the major breweries – Anheuser-Busch, Miller, Molson-Coors, and Labatt as well as most craft breweries.
The keg coupler connects to the keg valve, “tapping” the keg. Both the gas line from the CO2 tank / regulator and the beer hose to the beer faucet attach to the coupler.
Stainless Steel body improves durability and resistance to chemicals
Stainless Steel handle fork for added strength
Tin-nickel plated probe is resistant chemicals and won’t chip like chrome
Short handle is ideal for the smaller diameter 1/6 kegs