Thinkware CPL Filter Reduce dashboard reflections and windshield glare in compatible Thinkware dash cam footage with this 14.5mm circular polarizing filter. It attaches over the camera lens using adhesive pads. Align the guide points during installation, then check the camera view before driving. 14.5mm Filter Reduced Glare Polarized View Thinkware Fit See more of the road through reflections Bright sunlight can make the dashboard reflect across a dash cam image. A CPL filter reduces some of that reflected light, helping road details and colors remain visible. The result depends on the angle of the light, the windshield and the filter alignment; it will not remove every reflection. This is the standard Thinkware filter used with compatible models such as the original Thinkware U3000. The U3000 Pro uses a different specified filter, so check the full camera name when ordering a replacement. This package contains one filter, not a front-and-rear set. Clean the camera lens with the supplied cloth. Remove the protective film and position the filter with its guide points vertical and crescent-shaped adhesive pads facing the lens. Check the live view after fitting it. A polarizer reduces incoming light, so also review a night recording if you regularly drive in dark conditions. What's Included 1 Thinkware CPL filter Cleaning cloth Quick start guide Specifications Retailer SKU TW-CPL Filter type Circular polarizing filter Diameter 14.5mm (approximately 0.57in) Attachment Adhesive pads on the camera lens Alignment Guide points vertical Purpose Reduce reflections and windshield glare Excluded models U3000 Pro, U1000 Plus, ARC 900 and ARC 700 Filter quantity 1 Frequently Asked Questions Will this fit every Thinkware dash cam? No. This standard filter is excluded for U3000 Pro, U1000 Plus, ARC 900 and ARC 700. Use the filter specified for those cameras. Check the exact model rather than choosing by brand alone. Does it fit the original U3000? Yes. The original Thinkware U3000 uses the standard filter. Do not confuse that model with U3000 Pro, which needs its own specified filter. Will it remove all glare? No. It can reduce polarized reflections, including dashboard reflections in the windshield. Lighting angle, glass and installation affect the result, and some glare can remain. How should I align it? Clean the lens, remove the protective film and keep the guide points vertical. The crescent-shaped adhesive pads face the camera lens. Follow the Thinkware installation video in Resources and check the camera view. Can a CPL filter make night footage darker? Yes. A polarizing filter reduces some incoming light. Check your recordings in the conditions you drive in, especially at night, instead of assuming every scene will improve. Does the package include two filters? No. It includes one CPL filter, a cleaning cloth and a quick start guide. A camera and any additional filter are separate. Is this a windshield film? No. This filter attaches to a compatible camera lens. It does not cover the windshield or repel rain from the glass. Do I need one if my dash cam already came with a filter? Check the included filter first. This product can replace a missing or damaged compatible standard filter; there is no need to stack it over another CPL. Resources Thinkware standard CPL filter unboxing and installation Thinkware standard CPL filter unboxing and installation video Separate U3000 Pro filter installation video Check your exact Thinkware filter fit