This none branded spare foam is design to fit the Oase Biotec 5.1 and 10.1 filters & Biosmart 18-36000.
Features:
With a slit pre cut into them already, they will fit straight onto your foam holder and work just the same as your existing filters.
We advise to change your foams when they have compacted too much due to waste and usage over the years.
You can purchase them as either singles or as sets, and we also have the fine green foam too.
So you can either replace a few of your foams or the whole set of them. These are ideal if you have bought a second hand filter and need to start again.