Oase BioTec 4, 5, 10, 12, 18, 30, and 36 Replacement Parts (Discontinued Models) Part:Foam Holder / BioTec 5 or 10 Replenishes loss of winter bacteria

Replenishes loss of winter bacteria during spring start-up

you can protect your air pump by preventing excessive back pressure

Aquascape® Koi Krunchies are ideal for hand feeding goldfish

Cambridge Style - Square lattice

Oase BioTec 4, 5, 10, 12, 18, 30, and 36 Replacement Parts (Discontinued Models) Part:Foam Holder / BioTec 5 or 10 Replenishes loss of winter bacteriaShips directly from manufacturer Replacement parts are available for the following discontinued Oase filters: BioTec 4, BioTec 5, BioTec 10, BioTec 12, BioTec 18, BioTec 30 and BioTec 36. SKU UPC Code Description Compatible BioTec Filter 4 5 10 12 18 30 36 54030 706759540308 Red Filter Foam X X X 56739 706759567398 X 40977 706759409773 X X 54031 706759540315 Blue Filter Foam X X X 56738 706759567381 X 40978 706759409780 X X 10648 706759106481