![Hamburg Matten Biological Sponge Filter Set 25.5x25x3cm Polyether HMF shrimp fish fry breed (Black, PPI 45) : Amazon.co.uk: Pet Supplies Hamburg Matten Biological Sponge Filter Set 25.5x25x3cm Polyether HMF shrimp fish fry breed (Black, PPI 45) : Amazon.co.uk: Pet Supplies](https://m.media-amazon.com/images/I/61jaKF5TP3L._AC_SX679_.jpg)
Hamburg Matten Biological Sponge Filter Set 25.5x25x3cm Polyether HMF shrimp fish fry breed (Black, PPI 45) : Amazon.co.uk: Pet Supplies
![Poret Hamburg Matten Bio Mobile sponge (polyether) filter HMF fish shrimp fry black breed 10x10x34cm (PPI 30, Blue) : Amazon.co.uk: Pet Supplies Poret Hamburg Matten Bio Mobile sponge (polyether) filter HMF fish shrimp fry black breed 10x10x34cm (PPI 30, Blue) : Amazon.co.uk: Pet Supplies](https://m.media-amazon.com/images/I/51xhOzS2VeS._AC_.jpg)
Poret Hamburg Matten Bio Mobile sponge (polyether) filter HMF fish shrimp fry black breed 10x10x34cm (PPI 30, Blue) : Amazon.co.uk: Pet Supplies
![3D Printable Hamburger Mattenfilter + Tschechischer Luftheber (Filter+Airlift for aquarium) by Alois Mack 3D Printable Hamburger Mattenfilter + Tschechischer Luftheber (Filter+Airlift for aquarium) by Alois Mack](https://cdn.myminifactory.com/assets/object-assets/5d6930fd94e09/images/720X720-20180913-123735.jpg)
3D Printable Hamburger Mattenfilter + Tschechischer Luftheber (Filter+Airlift for aquarium) by Alois Mack
![Hamburg Matten Filters are space saving, non leaking and supremely efficient. HMF`s do better when not cleaned. Hamburg Matten Filters are space saving, non leaking and supremely efficient. HMF`s do better when not cleaned.](https://fish2water.com/resources/APA%20Small%20with%20Radar2.png)