The Praxair ProStar 45V45 1/8″ Difusor Gas Lens PRS45V45 is a set of gas lenses designed for welding equipment. Made by South-Weld, this product comes in a bag of 3 units. The gas lens serves as a diffuser to control the direction and spread of the gas used in welding processes, ensuring a consistent and precise result. Ideal for MIG, TIG, and stick welding, this product is essential for professionals in the metalworking and manufacturing industries.