Foam cuts for do-it-yourself biological filters or pond filters are very trendy. This is why JBL has extended its range of foam blocks and is now providing foam blocks with an edge length of 50 cm in 2.5, 5.0 and 10 cm thickness. Due to a special high pressure process a very high-grade, open-pored quality is achieved.
All filter foam blocks are available with fine and coarse pore size, do not pollute the water and are suitable for freshwater and saltwater. Aquarists and pond owners can easily cut the blue foam with scissors to the required size.