The Hayden Hydrophobic Washable central vacuum filter is a real money saver. Made from a new polyester material, it's easily cleaned by just running it under clean water. Will fit these Hayden central vacuum models: SuperVac 2400, SuperVac 3600, SuperVac 6000, SuperVac SV2400, SuperVac SV2400BU, SuperVac SV3600, SuperVac SV3600 Plus, SuperVac 81SV70, SuperVac 81SV90, and SuperVac Premier 9000. This filter has also been sold under a generic part number of HA-180. For optimum performance replace every 2 years even though it is washable.