Red Sea ReefRun G2 12000 Controllable DC Pump

The Red Sea ReefRun G2 12000 is Red Sea's flagship controllable DC return pump, built for large reef systems, big sumps, and demanding manifold runs. With an adjustable flow range of 1850–3250 GPH and a max head of 19.7 ft, it delivers serious water movement while staying quiet and energy efficient.

Run it standalone with the built-in controller, or pair it with the ReefRun Single or Dual DC Controller and the ReefBeat app for Wi-Fi scheduling, Feed Mode, and wave patterns. The 180° rotating outlet, universal fittings, and included inlet flow guide make plumbing clean in virtually any sump.

Available for pickup at our Layton showroom or shipped nationwide.

Features

• Controllable DC pump with wide 1850–3250 GPH adjustable range
• High max head (19.7 ft) — ideal for long plumbing runs and tall systems
• Quiet operation with low power draw (32–110W)
• Built-in flow controller for standalone use
• Works with ReefRun Single/Dual DC Controllers + ReefBeat app for Wi-Fi control, scheduling, Feed Mode, and wave patterns
• 180° rotating outlet with universal connectors for flexible plumbing
• Inlet flow guide for smoother intake and reduced turbulence
• 10 ft power cable — fits deep cabinet installations
• Safe for both freshwater and saltwater systems

Specifications

FAQ

What size tank is the G2 12000 best for?
It's designed for large reef systems — typically 200+ gallons — and big sumps/manifolds where you need both high flow and high head pressure.

Does it need the ReefRun controller?
No. It runs on its own with the built-in controller. The ReefRun Single/Dual adds Wi-Fi, ReefBeat app control, Feed Mode, and scheduling.

Can I use it in freshwater?
Yes — it's safe for both freshwater and saltwater applications.

Is it quiet?
Yes. DC pumps run much quieter than AC, and the G2 series is tuned for low-noise operation even at higher flow settings.