Signature – Bullfrog 25sqft Microban® Filter Cartridge.
Has a open top and the bottom has a coarse thread spigot.
The open top is designed so you can purchase a cap that will hold a Nature 2 stick in the centre of the filter.
Filter dimensions: Height- 150mm(not including handle or spigot), Width- 200mm, Spigot ID- 50mm.
These filters are made with Microban® antimicrobial protection technology.