Surefire F06 Red Filter for 1.25" Diameter Bezels
The F26 filter produces a smooth beam of red light. Hunters use the red filter to minimize light signature with game that cannot see colors; general users for close range applications such as map reading as it reduces light output and helps preserve night-adapted vision. Flip-up filter window allows instant access to white beam.

Fits: All flashlights and WeaponLights with a 1.25" bezel