Danner Supreme Hydro-Mag Recirculating Pump 700 GPH (Model 40127) — Oil-Free, Adjustable Venturi

The Danner Supreme 700 GPH Hydro-Mag (Model 40127) is a compact, energy-efficient recirculating pump with an adjustable Venturi that delivers up to 700 gallons per hour for hydroponic, aquaponic, and circulation applications.

Built for continuous duty, this oil-free pump combines a Hybrid Magnetic Induction motor with a vortex impeller to move water efficiently while minimizing wear. Its adjustable Venturi introduces aeration into nutrient-rich solutions to help maintain healthy root zones. Designed for either submersible or inline installation, the unit includes a 10-foot cord and standard plumbing fittings for quick integration into home and commercial growing systems.

How much water can this pump move and what are its power needs?

The Supreme Hydro-Mag 40127 is rated for a maximum flow of 700 gallons per hour and runs on 120 volts. It draws approximately 70 watts (1.6 amps), making it suitable for continuous operation without excessive energy consumption. The pump will shut off under lift conditions reaching around 11.5 feet for a typical 3x3 flood table setup.

• Maximum flow rate: 700 GPH (US)
• Power: 120 V, 70 W, 1.6 A
• Shut-off lift for common flood table: ~11.5 feet
• Cord length: 10 feet for flexible placement

Can this unit add oxygen to my nutrient solution and how does the Venturi work?

This model features an adjustable Venturi on select sizes that draws air into the water stream, increasing dissolved oxygen in the solution. Better aeration supports healthier root systems in hydroponics and aquaponics without the need for a separate air pump. The Venturi is simple to adjust to match the aeration level required by your crop and reservoir size.

• Adjustable Venturi for variable aeration
• Integrates air into nutrient flow to stimulate roots
• Reduces need for additional aeration equipment

Is this pump durable and where can I install it?

The Supreme Hydro-Mag is oil-free and engineered for continuous-duty operation so there are no oil seals to fail. Its hybrid magnetic induction motor and vortex impeller reduce wear, making the pump suitable for long-term use. You can install it submerged in a reservoir or inline in a plumbing run, depending on system layout and space constraints.

• Oil-free design with no wearable oil seals
• Suitable for submersible or inline applications
• Hybrid motor and vortex impeller for reliable performance

How do I choose the right size and hook it up to my system?

Select a pump by estimating daily water turnover and the head height it must overcome. Consider the number of plants, system type (ebb-and-flow, NFT, RDWC), and vertical distance to the highest outlet. The 40127 includes 1/2" FPT inlet and MPT outlet and a 1/2" barb x 1/2" NPT fitting for straightforward plumbing connections.

• Match pump GPH to daily water needs and coverage area
• Account for vertical head height in system planning
• Includes 1/2" FPT inlet, 1/2" MPT outlet, and 1/2" barb x 1/2" NPT fitting

Who this is for: Growers who need a compact, reliable circulation pump for small to medium hydroponic and aquaponic systems—home hobbyists, vertical growers, and small commercial operations looking for continuous-duty performance and optional aeration. If you want a low-maintenance, energy-conscious pump that can be used submerged or inline and offers adjustable aeration, the Danner Supreme 700 GPH Hydro-Mag Model 40127 is designed to meet those needs.