- Will fit SunSun HW external filter series.
- 100% genuine replacement part.
- Set A will fit 303B/304B.
- Set B will fit 402B/403B/404B.
- Set C will fit 504B/505B
- Set D will fit 702B/703B/704B.
- Our replacement aquarium external filter UV Sleeves will work on similar models.
- This item is brand new, although it may have minor cosmetic imperfections such as scratches.
- If you are unsure of the size you need please feel free to email us.