Replacement Air Filter for select Hitachi Projectors CP-WU9410, CP-WU9411, CP-WX9210, CP-WX9211, CP-X9110, CP-X9111, DT01585, DT01735, CP-HD9950, CP-HD9950B, CP-WU9100, CP-WU9100B, CP-WU9100BGF, and DT01725 - UX39551 Easy Installation: Replacing the air filter is straightforward, making it a convenient task during regular maintenance or lamp replacement