Two Little Fishies PhosBan Reactor 150 & 550, Connector, (PVC Black), Part I;

Replacement Two Little Fishies Phosban Reactor 550, Connector, (PVC Black), Part I. This part is also a replacement part for the PhosBan Reactor 150, though it's not listed on the Operation Instructions parts list. NOTE: The PhosBan Reactor 550 & 150 have two Connectors. As pictured, there is only quantity one with each order.