COMPATIBLE WITH BiORB ANTI ALGAE FILTER SERVICE KIT REFILL INC A PAD & AIR STONE
Compatible with biorb service kit refill suitable for ALL Orb models old and new. 5 x Compatible With Biorb Filter Service Kit and 2 x Compatible Biorb Air Stones. FILTER FOAMS 5 x COMPATIBLE WITH BIORB ANTI ALGAE FILTER SERVICE KIT REFILL.