Experience unparalleled eye protection with the Weldmark Filter Lens, designed specifically for welding applications. This rectangular lens, measuring 4.25 inches by 2 inches, provides essential ultraviolet and infrared protection, ensuring safety in high-amperage welding environments. Crafted from heat-treated, hardened glass, it is optically correct and features smooth rounded edges for added comfort. Ideal for use with welding helmets and goggles, this filter lens meets industry standards, making it a reliable choice for both light and heavy-duty welding tasks.