Experience exceptional clarity and protection with the Weldmark Filter Lens Shade 12, designed specifically for welding applications. This high-quality lens, crafted from heat-treated, hardened glass, ensures optimal optical performance while providing essential IR and UV protection, adhering to industry standards such as GGG-H-211D and ANSI Z87.1. With dimensions of 5.25 inches by 4.5 inches, this rectangular lens fits seamlessly into most welding helmets, offering a choice of filter shades suitable for various amperage levels. The smooth rounded edges enhance comfort and safety, making it an indispensable component for any welder seeking reliable eye protection in demanding environments.