RESUN 12 Outlet Air Pump | 3000L/hr (50L/min) | 240V 35W | Low Noise Linear Diaphragm | Includes 12-Way Manifold

Need serious aeration across multiple tanks, reservoirs, or grow sites? The RESUN 12 Outlet Air Pump (3000L/hr) is a high-output, low-noise powerhouse built for demanding setups in aquariums, ponds, hydroponics, and nutrient reservoirs.

Powered by electromagnetic linear diaphragm technology, it delivers strong, consistent airflow while maintaining efficient operation. It also includes automatic thermal cut-out overload protection for peace of mind and long-term reliability.

Supplied with a 12-outlet manifold (to suit 4mm silicone airline), it’s ideal for splitting airflow across multiple air stones/diffusers. For best performance and maximum diaphragm life, ensure the pump runs with the recommended back-pressure load using air stones/diffusers and (if needed) a flow control valve.

Key Features

• Huge air output: up to 3000L/hr (50L/min)

• 12 outlets: supplied with plastic 12-outlet manifold (suits 4mm silicone airline)

• Electromagnetic linear diaphragm technology for steady, efficient airflow

• Low noise: approx 41dB(A) at 3m / 50dB(A) at 500mm (tested with medium back pressure)

• Automatic thermal cut-out overload protection

• IPX4 rated: tolerates light splashes/rain (best placed in a low-dust area)

• Durable plastic body for tough everyday use

Specifications

• Voltage / Wattage: 240V / 35W

• Max pressure: 30kPa

• Max air output: 3000L/hr (50L/min)

• Pump outlet diameter: 18mm

• Cable length: 1.5m

• Dimensions: 245(L) × 175(W) × 185(H) mm

• Weight: 4.25kg (pump) | 4.85kg (cartoned)

Setup Notes (Important)

• Must be set up above the water level

• If not using all manifold ports, block unused outlets (e.g., silicone sealer) to maintain appropriate back pressure

• For maximum diaphragm life, run with approx 12–15kPa back pressure (air stones/diffusers + optional flow control valve)