D-Type Coupler – Full Stainless Steel – DUOTIGHT 5/8″ to 8mm push in

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.Compatible but not limited to:4 Pines Bulmers Carlton Draught Cascade Cricketers Arms Crown Lager Fat Yak Great Northern Kingfisher Konig Monteiths Mountain Goat Peroni Pure Blonde Reschs Draught Somersby Tiger Beer VB Here is an instructional video on commercial keg couplers.  We highly recommend that you watch this video if you have not used a keg coupler before: