Filter pads for the professional filter range 2026 2028 amp 2226r contents 2x wadding pads 1x foam padr the particular composition of the materials in these shaped filter pads allows thorough water filtration the whole of each mat takes on water evenly and physically traps both coarse and fine particles within a short time of installation bacteria will begin to breed in the porous foam promoting intensive biological cleaningr foam pad blue highly porous phenol free filter medium for