Fluval U3 Underwater Filter Foam Pad

The Fluval U3 Underwater Filter Foam Pad is designed specifically for the U3 filter model. Fluval Foam Pads capture large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. Custom fit to prevent bypass, they have a pore size that allows efficient water flow with less clogging for long-lasting filtration. For freshwater, marine or reptile environments. 2 pieces - 60 x 195 x 15 mm.