Collection: Red Sea Protein Skimmers

Reefer DC skimmers from Red Sea come in three sizes: 300, 600 and 900. Each is accompanied by a separately listed upgrade kit under the same size number, which takes an earlier regular Reefer skimmer of that size and converts it to the DC version instead of calling for a new one. Those numbers are Red Sea's own designation for the Reefer line rather than a capacity figure, so line them up against the Reefer system the skimmer will serve instead of reading them as a volume. A kit belongs to one size only and does not carry over to the other two, so confirm which skimmer is in the cabinet before buying one.