Our 28cm high Mobile Hamburg Matten Filter: https://www.envobeeshrimp.co.uk/product/hmf-biological-sponge-filter-black-10x10x28cm/ | By Envobee Shrimp | Facebook
![Scapefactory HMF Mattenfilter Hamburger Mattenfilter sehr fein (45ppi) MIT Luftheber für Aquarium (27,5cm, schwarz) : Amazon.de: Haustier Scapefactory HMF Mattenfilter Hamburger Mattenfilter sehr fein (45ppi) MIT Luftheber für Aquarium (27,5cm, schwarz) : Amazon.de: Haustier](https://m.media-amazon.com/images/I/61q5cWd9FfL._AC_SL1400_.jpg)
Scapefactory HMF Mattenfilter Hamburger Mattenfilter sehr fein (45ppi) MIT Luftheber für Aquarium (27,5cm, schwarz) : Amazon.de: Haustier
![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/HMF%20malawi%20corner%20filter.png)