This is the back piece. Filters water before it reaches the filtration system in the Nanocube aquariums. MSS-L
The M.S.S. instantly tranforms your intake grill into a true overflow within seconds. It is held on from the force of water entering the fish tank.
- Instantly removes surface scum.
- Improves gas exchange.
- Clarifies water.
- Installs in seconds.
- Quiet operation.