Apogee Inc. 4-Position Filter Wheel -- filters

Hello everyone,

Does anyone know anything about the red, green, and blue filters than
come with the Apogee Inc. 4-Position Color Filter Wheel? I have one of
these on order (for the wheel itself), and I was wondering how good the
included filters were, what kind they were (interference? standard
glass?), whether transmission curves were available, etc. Just
wondering whether to hang onto them, or find them a new home, etc.

Thanks,
Mark