This is the Hoover Replacement Windtunnel Bagless Filter that will fit the following models: 43611-042 U8146-900 U8148-900 U5296-900 U8174-900 U8120-900 U8122-900 U8126-900 U8130-900 U8134-900 U8140-900 U8142-900 U5720-900 U5720-990 U5750-900 U5755-900...