Oase BioTec 4, 5, 10, 12, 18, 30, and 36 Replacement Parts (Discontinued Models) Bulk Large 3" spring check valve

Large 3" spring check valve allows for high flow

Installs easily -- attach the retro kit to the multi-port valve

as well as a 3" bulkhead fitting

4 65' 3420GPH @ 3' C3/4 3/4 4

The Pondmaster® Air Diffuser Kit includes a 6" Straight Diffuser and 20' of 5/8" tubing

Oase BioTec 4, 5, 10, 12, 18, 30, and 36 Replacement Parts (Discontinued Models) Bulk Large 3" spring check valveShips 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