BUTANE LOW PRESSURE GAS GAZ CLIP ON ADAPTOR 21mm type 714B CALOR screw fitment
Adapts 21mm clip on to accept CALOR 714B type regulator Outlet thread 21.8 x 1.814 LH. BUTANE GAS ADAPTOR for 21mm CALOR type cylinders. Butane gas adapter. For safety all gas work should be carried out by a qualified engineer.