Keg Coupler S-Type (Heineken/Asahi)

The S-Type Coupler has a noticeable longer engaging pin than the almost identical D-Type Coupler.
Suitable for attaching Asahi, Heineken, Hofbrau Kegs

How to install Gas Duck Bill Valve
Remove black EPDM washer inside 1 of the duotight push in fittings that you will use for gas. The duck bill valve is a washer as well as a non-return check piece.
It is optional, you do not have to use the non-return check pieces for gas or liquid.