SK metal filter, for cooling unit SK 3178./3179.80x/3180.800, WHD: 229 x 168 x 8 mm, Metal filters, Aluminum, 229 mm, 168 mm, 8 mm, 9.02 in, 6.61 in, 0.31 in, 76169100, 1 pc(s), 0.220 lbs, 4028177965553, The use of washable metal filters is recommended, particularly in environments with dusty or oily ambient air. If air or steam condenses on the metal surfaces, any particles that may be present will adhere to the metal and are easily washed out with water or grease-dissolving detergents.