I have a set of Astrodon 1.25" Tru-Balance (LRsGB) Filters for sale.
These are designed specifically for CCD Imaging (I-Series)and feature the deeper (improved) red filter.
They are in excellent condition and produce excellent results.
Astrodon are among the best filters you can find.
I paid $450 for this set of four. I'm willing to let these go at the heavily discounted price of $300, which includes postage to anywhere in Australia.