The KFF Series includes various filter groups characterised by: Quick installation The KFF filter group is installed without screws, simply by pressing it into the space on the enclosure. Innovative securing clip Created in material with high level of elasticity, for securing on metal sheet from 1 to 2.5 mm thickness. Improved water resistance The seal between base and cover has been replaced with ribs that promote movement of water towards the exterior. Easy slide opening Removing and replacing the cover on the base features a slide-and-click system. Effective safety The filter can be replaced from outside, without the need for any tools. Hidden seal Dedicated perimeter housing for seal between filter group and enclosure.