Filters: Dark Brown for NATO and Green Vehicles (AK Interactive) (AK076) (55)Enamel Product. Filters are designed to achieve a subtle tonal variation for vehicles especially in monotone camouflage colours. Shake and apply directly from the bottle with a flat brush. This filter is suitable for Nato vehicles and any green vehicle in general or as a component of your camouflage. At the same time, the filter adds depth and richness to our vehicle, preparing it for the next painting steps. Use the filters by wetting a brush and