22mm SnapLok Aluminium Rod - AR22
 
The 22mm rods are made from hollow aluminium and are riveted onto the fittings/ferrules on either end of the rod, plus the steel is heat treated for extra strength/durability and double plated for extra corrosion resistance.
 
They are great combined with the 22mm Polypropylene Rods in an inglenook as the combination makes it light and rigid in a very wide flue.