Fine filter foam media for the Biotec 5, 10 or 30.Set of 6 foams: 3 fine and 3 coarse.Please note: these are unsuitable for the Biotec 5.1, 10.1 or 30.1.Each sponge is approx. 25cm x 25cm x 8cm with a slit through the middle.Please also note that these are not official Oase Biotec foams but our own alternative at a much cheaper price.The foam colours may change due to availability, however the high quality remains the same.
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