The Red Sea ReefRun G2 4000 is a highly efficient, commercial-grade controllable DC return pump engineered to deliver quiet operation, smart automation, and precise flow management for marine filtration systems. As part of Red Sea’s second-generation ecosystem, it is built to integrate with smart aquarium hardware while providing fail-safe protection for critical water return operations.
Core Technical Specifications
Maximum Flow Rate: 4,000 Liters per Hour (1,060 Gallons per Hour).
Maximum Head Height: 3.0 Meters (10 Feet) of vertical pressure capability.
Power Consumption Output: Scales dynamically from 15 Watts to 40 Watts depending on set flow intensity.
Input and Output Fittings: Includes robust, step-less barb hose connectors compatible with 20mm, 25mm, and 32mm (3/4", 1", and 1-1/4") plumbing.
Operating Voltage: Safe 24V DC motor design.
Key Performance Features
Brushless DC Motor Design: Incorporates a high-efficiency ceramic shaft and bearings that reduce friction, eliminate heat transfer to the water column, and ensure whisper-quiet operation.
Dual Orientation Volute: The pump head housing can be rotated 90 degrees, allowing you to route your plumbing vertically or horizontally to fit tight sump return chambers.
Dry-Run Protection: Features built-in automatic sensors that immediately cut power to the motor if it detects zero water level or a blocked intake, preventing thermal damage.
Smart Integration via ReefBeat
The pump links directly with the Red Sea ReefBeat app through a separate ReefRun Dual Controller hardware hub. This cloud connection allows you to customize flow intensities, program automated daily feeding schedules (which ramp down the return flow to prevent food from washing into the overflow), and receive real-time push notifications on your smartphone if the pump encounters a dry-run event or power interruption.
The Red Sea ReefRun G2 4000 is a highly efficient, commercial-grade controllable DC return pump engineered to deliver quiet operation, smart automation, and precise flow management for marine filtration systems. As part of Red Sea’s second-generation ecosystem, it is built to integrate with smart aquarium hardware while providing fail-safe protection for critical water return operations.
Core Technical Specifications
Maximum Flow Rate: 4,000 Liters per Hour (1,060 Gallons per Hour).
Maximum Head Height: 3.0 Meters (10 Feet) of vertical pressure capability.
Power Consumption Output: Scales dynamically from 15 Watts to 40 Watts depending on set flow intensity.
Input and Output Fittings: Includes robust, step-less barb hose connectors compatible with 20mm, 25mm, and 32mm (3/4", 1", and 1-1/4") plumbing.
Operating Voltage: Safe 24V DC motor design.
Key Performance Features
Brushless DC Motor Design: Incorporates a high-efficiency ceramic shaft and bearings that reduce friction, eliminate heat transfer to the water column, and ensure whisper-quiet operation.
Dual Orientation Volute: The pump head housing can be rotated 90 degrees, allowing you to route your plumbing vertically or horizontally to fit tight sump return chambers.
Dry-Run Protection: Features built-in automatic sensors that immediately cut power to the motor if it detects zero water level or a blocked intake, preventing thermal damage.
Smart Integration via ReefBeat
The pump links directly with the Red Sea ReefBeat app through a separate ReefRun Dual Controller hardware hub. This cloud connection allows you to customize flow intensities, program automated daily feeding schedules (which ramp down the return flow to prevent food from washing into the overflow), and receive real-time push notifications on your smartphone if the pump encounters a dry-run event or power interruption.
