Washable Fan Filters Black fan filters keeps the dust out of your PC. Available for 6, 8, 9 & 12cm fans. Product Code: GRM60-30, GRM80-30, GRM92-30, GRM120-30 Black fan filters keep the dust which can accumulate over a long period of time out of your PC. Enhances cooling performance of the PC. Easy to clean. • Black fan filter • Available for 6, 8, 9.2 & 12cm fans • Washable, easy to clean