Designed for optimal safety and performance, this filter lens offers essential protection for welding applications. Crafted from heat-treated, hardened glass, it features a precise shade of 3 that effectively shields against harmful ultraviolet and infrared rays, adhering to industry standards such as GGG-H-211D and ANSI Z87.1. With dimensions of 4.25 inches by 2 inches, this rectangular lens is compatible with most welding helmets and goggles, ensuring a snug fit while providing clear visibility. The smooth rounded edges enhance comfort, making it a reliable choice for both light and heavy-duty welding tasks. Each package contains 50 units, making it an efficient solution for professionals in need of durable eye protection.