Red Sea ReefSense 4 Port Expander - Expand Your ReefControl System other media This overflow downpipe is specifically

This overflow downpipe is specifically designed for use with the REEFER models listed above

Ideal for marine herbivores like Tangs

and growth of invertebrates

Perfect Height for 15” Sumps: Designed to fit most sumps

Red Sea ReefSense 4 Port Expander - Expand Your ReefControl System other media This overflow downpipe is specificallyThe Red Sea ReefSense 4 Port Expander is designed to enhance the functionality of your ReefControl Pro system. With this expander, you can accommodate up to 7 ReefSense probes or sensors, providing greater monitoring capabilities for your reef aquarium. Whether you're tracking additional parameters or expanding your system, the 4 Port Expander ensures seamless integration, allowing you to easily scale up your ReefControl setup without the need for