CAVAGNA 27mm Clip on Adaptor. This Adapter Allows you to use a Patio Calor Gas Cylinder with a 30mbar Caravan or Motorhome Bulkhead mounted Regulator using a Butane Hose Assembly. Sold in Singles or Boxed Quantity x 50. R5HBUT Butane Hose Assembly 450mm, R7HBUT Butane Hose Assembly 750mm & R15HBUT Butane Hose Assembly 1500mm