SW Filter 2” x 5 ½” for all SW and MW SuperBright lights FS-20

Hoya Optics Division U-325C as cast SW filter.  Width 2” ~ 5 cm., Length 5 ½” ~14 cm.  Filter is a replacement for all SuperBrights, the SuperBright 2000SW, the SuperBright II, and the SuperBright 3. Model FS-20.