Hydor Seltz D 3000 Controllable Universal Pump

Hydor Seltz D 3000 Controllable Universal Pump

The Hydor Seltz D 3000 DC Controllable Universal Pump (Model P21123) is a versatile, energy-efficient solution for fountains, water features, aquarium applications, hydroponics, and pond circulation systems. This smart DC-driven pump offers adjustable flow and power consumption via an external controller or optional control modules, making it ideal for varied installations.

Featuring a top discharge design and robust ceramic/sapphire rotor, the pump ensures smooth, reliable operation with minimal noise and long service life. It can run continuously at up to 3000 litres per hour while consuming low power, thanks to its DC motor technology.

Installation flexibility comes from its universal mount base, .5″ internal threaded inlet, and included suction cups and adapter fittings. The compact, sealed design resists moisture and is suitable for both freshwater and saltwater environments. For advanced setups, optional accessories such as Wi‑Fi or pH link controllers (sold separately) allow full integration into smart aquarium or pond systems.

Dimensions: 80 mm (W) × 165 mm (L) × 110 mm (H)

Key Features

• Model P21123, max flow 3000 lph

• DC motor for adjustable speed and high energy efficiency

• External controller support for variable flow settings

• Quiet operation with long-life ceramic rotor

• Top discharge and universal base for easy mounting

• FD threaded inlet and outlet compatible with ½″ fittings

• Suitable for both freshwater and saltwater use

• Ideal for aquatic systems, fountains, hydroponics, filtration and cooling

• Optional smart control available via add‑on modules

• Only 28 watts