The Red Sea ReefRun G2 is the second generation of Red Sea's DC return pumps, available in 4 models from 4,000 to 12,000 L/h (1,060 to 3,200 gph) to cover every reef aquarium from nano to large REEFER systems. Its sine-wave DC motor ensures, in the manufacturer's words, virtually silent operation from the very start, even at 100% intensity — and unlike the first generation, it runs stand
Official Red Sea specifications (2025 manual)
- ReefRun G2 4000: 2,000-4,000 L/h (530-1,060 gph) · max head 3.4 m (11.2 ft) · 16-38 W · ¾" PVC adapter, ⅝"/1" hose barbs, ¾" GAS thread
- ReefRun G2 6000: 3,600-6,500 L/h (950-1,700 gph) · max head 4.4 m (14.4 ft) · 22-56 W · ¾"/1" PVC, 1"/1¼" barbs, 1" GAS thread
- ReefRun G2 8000: 4,100-8,300 L/h (1,080-2,200 gph) · max head 5.3 m (17.4 ft) · 24-73 W · 1" PVC, 1"/1¼" barbs, 1" GAS thread
- ReefRun G2 12000: 5,000-12,000 L/h (1,300-3,200 gph) · max head 5.8 m (19 ft) · 33-105 W · 1"/1¼" PVC, 1"/1¼" barbs, 1" GAS thread
The supplied fittings are compatible with both US and metric standard piping. Manufacturer warranty: 2 years on the motor, 6 months on the impeller (wear item).
alone thanks to its built-in Flow Controller, with nothing else to buy.