Hello! It sounds like the new V3 Red Sea Reefer has been rolling out this year and the details talk about a sump that better supports a refugium:
Have a good one
- Refugium-ready sumps with the downflow valve positioned at the front of the cabinet (not applicable to the Reefer 170).
- Increased volume for R.O reservoir
- Introduction of a new filter cup supplied in addition to a micron filter bag. (this item will soon be made available for existing customers as a standalone item for aftermarket upgrade)
- Plywood cabinet with levelling feet (only applicable to XL425 & XL525 models)
Have a good one