Commonly referred to as the “Twist On Coupler” for the twist style kegs that aren’t D-Type.
Suitable for attaching Asahi, Heineken, Hofbrau Kegs

Replacement Seal Kit -> KL12324 – Seal Kit for D & S Type Keg Coupler (KL08822 & KL08839)

Includes:
1 x – S-Type Coupler with 5/8″ Male Beer and Gas threads
2 x – duotight 5/8″ duotight to 8mm push in
1 x – Non-Return Ball or Torpedo check piece (Non-Return Liquid)
1 x – Gas Duck Bill valve (Non-Return Gas)

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.