The D coupler is the most common beer coupler available in the US and Canada. It is used by all the major breweries including Anheuser-Busch, Miller-Coors, Labatt as well as most craft breweries.

• SAFE. All keg couplers are equipped with internal safety relief devices which when functioning with other relief devices in the system will prevent a keg from reaching pressures in excess of recommended working pressures. This relief device will also allow the user to relief pressure in order to prevent or correct dispense problems.
• EFFICIENT. Designed for maximum flow in either single or series keg dispensing. A specially designed back flow check valve prevents the back up of liquid into the gas line and eliminates the need for a coupling washer between the nut and the coupling body.
• RELIABLE. All beer couplers come with stainless steel hinge screws to prevent rusting and sticking and allow for quick and easy cleaning without the need for any special tools.
• Fits on all 1/6 barrel, 1/4 barrel, 1/2 barrel, 50L, 30L, 20L kegs