On sale! (normally $59) DEMCi Flex computer air filters are perfect for helping to keep your PC dust-free. This custom four piece kit consists of: 1x side panel filter, 1 x top filter, 1x front panel filter and 1 x rear filter*. All filters features magnetic adhesion for easy removal and cleaning of the re-usable, plastic filter.*Please note the rear filter is only to be used if the rear fan is installed as an intake fan with top exhaust setup.