I will let these do the talking:
redseafish.com
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REEFER DC Skimmers - The revolutionary self-leveling skimmers
The smart REEFER DC Skimmers include patent-pending self-leveling technology that prevents over-skimming, and prevent full cups from spilling over once they're full while continuing to aerate the water.
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Red Sea launch ReefRun DC Return Pumps and Self-Leveling Skimmers | Reef Builders | The Reef and Saltwater Aquarium Blog
Red Sea is seeing out a productive 2022 with news of two significant new product ranges – DC return pumps, and new DC-powered Self-Leveling protein skimmers. The DC return pumps represent the most…
reefbuilders.com