Replacement filter kit for Devilbiss Compressor Nebulizer model 5650D  5650H  4650D  and 46502 models. Can also be used for the discontinued 3650-D * Devilbiss Nebulizer Filters 5650D-601/5650D-602 fits 5650  4650 series nebulizer * 5 pack filters  5650-602 * 5650-D (2-prong power plug)