Anchor Brand - Gas Lenses Anchor 11Gl32 Gl Colletbody 3/32In - Sold as 2 EachGas lenses provide a more efficient stream of shielding gas to the welding process. The gas lens virtually eliminates turbulence in the gas shielding stream as it emerges from the nozzle. Two-piece construction Material: Brass/Copper Size Group: 12 Series