LTWHOME Compatible White Filter Floss and Blue Filter Pad Replacement for Tetra Pond Clear Choice Biofilter (Pack of 6) Custom designed and manufactured for

Custom designed and manufactured for Tetra Whisper 20i & 40i Internal Power Filter

There is no poly side to these filters

Thickness: 12mm(1/2")

Suitable for Oase Biotec 4 Filter

Packing include: 12pcs bio sponge

LTWHOME Compatible White Filter Floss and Blue Filter Pad Replacement for Tetra Pond Clear Choice Biofilter (Pack of 6) Custom designed and manufactured forPack include: 3 x Filter Floss, 3 x Foam Pad. Custom designed and manufactured for Tetra All Clear Choice Biofilters. Remove suspended matter from the pond and promotes the growth of ammonia consuming bacteria. Provide both mechanical and biological filtration to extend the life of your filters. Easy to replace. We recommend that filter pads should be changed regularly to keep filters effective.