Red Sea ReefRun G2 DC 4000 Return Pump

The Red Sea ReefRun G2 DC 4000 is a premium smart return pump, engineered to deliver powerful, efficient and virtually silent water circulation for marine aquariums. Designed with advanced sine-wave DC technology, it provides smooth, adjustable flow while consuming minimal power, making it an ideal choice for reef keepers who demand both performance and reliability.

Supplied with a standalone controller, the ReefRun G2 DC 4000 allows easy adjustment of flow to suit your aquarium’s needs. When paired with the optional ReefRun Dual Controller, the pump integrates seamlessly with the Red Sea ReefBeat app, giving you complete control over flow schedules, feed mode, maintenance mode and real-time notifications directly from your smartphone.

Built for long-term reliability and quiet operation, the ReefRun G2 DC 4000 is perfectly suited to Red Sea REEFER aquariums as well as other sump-based marine systems, ensuring dependable water movement for a healthy, thriving reef.

Key Features

• Adjustable flow rate up to 4,000 litres per hour
• Advanced sine-wave DC motor for ultra-quiet operation
• Energy-efficient design with low power consumption
• Includes standalone controller for simple flow adjustment
• Compatible with the ReefRun Dual Controller and ReefBeat app
• Custom flow schedules, feed mode and maintenance mode
• Dry-run and blockage protection (with Dual Controller)
• Ideal for Red Sea REEFER systems and other marine aquariums
• Built for reliable, long-lasting performance

Suitable for: Marine and reef aquariums