One off NPB - This is a UHC-type filter designed to reduce light pollution and improve contrast when viewing or imaging emission nebulae. As new in case, used very little. New price is USD 165 so this is a bargain at AU$ 160.
One off CGE - Also a UHC filter but this one tuned to permit enhanced views of galaxies in light polluted conditions. New price is USD 175, mine is as new and can be yours for AU$ 170.
Order them together and I will take off 10%.
More details can be found here:
http://www.npbfilters.com/about.html