Filter foam mat blue in the dimensions: 50 x 50 cm, mat thickness: 10 cm. The mat can be used for self cut or for the self contruction of a Filter (e.g. Hamburger Mattenfilter).https://www.aquaristikshop.com/aquaristic/PPI-Filter-Foam-Mat-blue-50x50x10-cm/276110/
- kevin v. wrote about PPI Filter Foam Mat blue 50x50x10 cm in 2017:
Superb foam sponge for any filter needs. Can't fault at all.
Serina E. wrote about PPI Filter Foam Mat blue 50x50x10 cm in 2016:
Foams were used in my sump, they work well and is easy to cut with a sharp knife. Good quality foam.