Welding Accessories - NexGen Digital Vairable ADF Welding Helmet Replacement Battery sold in a case of 10, the NexGen Replacement Retainer is a popular accessory among welders. These replacement retainers help extend the life and functionality of your Jackson Safety NexGen Variable ADF Welding Helmet. The NexGen Welding Helmets feature variable shades from 9 to 13, with sensitivity and delay adjustments to shield and protect eyes from radiant energy during weld. Established in 1933, Jackson Safety has built a century long reputation for delivering the most innovative safety solutions in the welding and personal protective equipment industries. When it comes to providing safety solutions with long-lasting value, durability and comfort, Jackson Safety has set the standard. Whether the need is for welding protection in a steel fabrication environment, head protection on a construction site, or hearing protection at an airport, Jackson Safety provides the widest range of safety choices to meet the needs of every job and every worker.