Used Zhumell 2" Filter Set (O-III, SkyGlow, UHC)Condition: This is a used Zhumell filter set including the O III, SkyGlow, and UHC filters in excellent condition. They are clean, with no marks on the optics nor bodies except the UHC filter does have a mark that can be seen in the provided photos. They each come in their original jewel case. (Any dust you see in the photos is easily removable it seems that these filters develop an electrostatic charge such that the dust in the air is just attracted