D-Type Keg Coupler – Full Stainless – duotight 5/8″ to 8mm push in Commonly referred to as the “Twist On Coupler”Suitable for attaching Carlton Draught, CUB, Fosters & VB KegsIncludes: 1 x – D-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.
