Keep your JY-W255 filtering like the day you set it up. This black sponge is the matching replacement media for the Jingeye JY-W255 hang-on filter — pull the tired pad from your aquarium or fish tank filter and drop this one in its place.

Good to know:
– Direct fit for the JY-W255 (400L/h) — check the model number on your filter first
– Measures 55×50×30mm — the JY-W255 uses two sponge sizes, so compare with the pad you are replacing
– Black foam catches fine debris and supports the bacteria that keep water stable
– A low-cost swap that avoids replacing the whole hang-on filter