Product name： ISTA PO4 Minus Media Filter Sponge 18"x10" PAD
● Even, fine and porous tissue structure assures its powerful chemical absorbing ability.
● Chemical & Mechanical Dual stage filtration.
● For use in custom sumps/ refugiums, hang-on filters, prefilter boxes, and more.
● Professional grade. Quick absorbing action with long term effectiveness.
● It can be cut to fit any size of your filter
● Safe for both freshwater and marine aquaria.
** 9 times greater in adsorption than activc carbon.
** remove during medication treatment.
18" x 10" x 0.39" / 45.7 x25.5 x1cm (LxWxH)