I have a CFW-5c internal color wheel, which also fits the ST237A and STV by Sbig, for sale.
SBIG CFW-5C Color Filter Wheel
Color filter wheel - generates tricolor images for ST-5C, ST-237A, & STV. It operates the same as the larger CFW8A except that it fits inside the camera head. The filters used in the CFW5C are exceptionally high quality RGB filters designed for parfocal operation at the fast focal ratio of Celestron's Faster optical systems. The band passes are also slightly different from the larger filters to better match the spectral response of the TI CCDs used in these cameras.
USA sale and shipping only