Red Sea Filter Media Cups are made to be packed with a variety of filtration media. They work great with filter floss, ceramic media, carbon, gfo, or any other media of your choice. Simply replace any 4" sock with this cup, add media to the included media bag and water is forced to flow down through your media before it can exit through the bottom slits.
Features & Specifications:
- Replaces Filter Socks
- Includes Media Bag
- Cup Dimensions: 4" x 8"
- Media Bag Size: 5" x 10"
Items Included:
- 1x 4" Filter Media Cup
- 1x REEF SPEC Media Bag