"D" system is the most common system available in the U.S., also known as American Sankey.
It looks similar to the "S" Type (Euro Sankey), but can be distinguished by it's shorter and wider probe.
How to Use
When the F1 silver handle is in upright position, the piston will have withdrawn into the coupler.
The valve face on the keg neck will have two teeth which match up to the receivers on the coupler.
Match it up, and the teeth sit into the groove of the coupler. Turn clockwise until it is fully held.
Push the button on the handle, and then down on the lever handle to properly couple/engage the keg.
What Connects to the Coupler
The gas line coming from your regulator connects at the side, marked 'Gas In'.
A 1/2" John Guest BSP screws on here over the NRV.
What size gas line are you using?
The beer hose connects with a fitting at the top. A 1/2" John Guest BSP screws on here.
What size beer hose are you using?
Material Nickel-plated forged brass body.
Material Stainless steel probe
Handle Color Silver
Handle Style F1 handle
Gas Port To fit 1/2" John Guest BSP - Out to 5/16" or 3/8" gas line.
Beer Port To fit 1/2" John Guest BSP - Out to 5/16" or 3/8" beer hose