WELDFLAME 2" x 4.25"Golden Coated Glass Filter Lens,Lens Replacement Golden Welding Filter,Shade-10 Replacement gold coated 4 1/4-Inch x 2-Inch glass welding filter lens For prolonged periods of welding and/or to see true flame arc and puddle color The gold coating reflects 90-Percent of radiated heat for cooler operation and less eye fatigue Provides 99.9-Percent UV/IR protection Meets ANSI Z87.1 safety standards