Profile: Arc-Zone.com®, Inc. specializes in welding accessories. We match industry's finest products to specific applications. CO2 heaters are designed to prevent CO2 regulator freeze-up and porosity in welds from loss of shield gas. Our classic black sport cap features adjustable buckle with a tuck-and-hide strap. Our semi-automatic, cold wire-feed machine is built to improve TIG weld quality and efficiency, and allow for quick and consistent filler metal verification.