4-1/4" x 2" Solar Auto Darkening Welding Helmet Lens Filter Shade 3-11[CAPT2011] | eBay
4-1/4" x 2" Solar Auto Darkening Welding Lens Filter,Automatically Shading Under Welding Conditions to Filter Out Bad Light,Fits All Standard Welder Helmet Windows: Amazon.com: Tools & Home Improvement
True View 3395, 2 X 4-1/4 " Drop-in Single Shade Auto Darkening Filter
QXKE 4-1/4 x 2-Inch Solar Auto Darkening Welding Lens Helmet Filter Shade 3-11 Cover - Walmart.com
Airgas - WALS450-9 - ArcOne® 4 1/2" X 5 1/4" X .2" Singles® HD Fixed Shade 2.5, 9 Auto-Darkening Welding Lens