Projector filter foam can be very good fit your projector filter frame. | Please choose the size you need 10cm x 10cm (for NEC) or 16cm x 6cm (for Sony). Don't See Your Model Listed? Send A Message - Happy To Help! | Foam air filter can be cut according to actual needs. Cut to fit filter for projector. | Projector replacement filter is 3.5 mm thick. | This is the general projector filter. Can be cut and fit to various model of HITACHI projectors