Tired of being forced to rent from companies like BOC gas? National Welding offers a buy your own gas option. Instead of being stuck with rentals, you can own your own bottle forever. It works out to be much more cost effective in the long run and is suitable for operations of any size. Regardless of your type of gas welding whether it be gas metal arc welding, gas tungsten arc welding, TIG welding, MIG welding and gas welding aluminium. Our gasses include oxygen, carbon dioxide, nitrogen, argon co2 (mixed) and pure argon welding gas. Gases come in sizes of disposable 1 and 2 lt, size C, D, E and G. Unsure of what gas to use for MIG welding or what gas to use for TIG welding? Ask us for our gas leaflet which includes pricing and application.