Danner® Supreme Hydroponics™ Recirculating Aerating Water Pump - Model 3 - 350 GPH

Venturi-Aerated Nutrient Delivery for Root Zone Oxygen, 350 GPH

Delivering nutrients without oxygen leaves roots starved of the air they need alongside water. The Danner® Supreme Hydroponics™ Recirculating Aerating Water Pump, Model 3, solves that at the pump itself: an adjustable venturi injects air directly into the flowing nutrient stream, so oxygen and nutrients reach the root zone together at up to 350 GPH.

Oil-free magnetic-drive construction keeps the nutrient reservoir free of contamination, and the pump installs either inline in an irrigation run or fully submerged in the reservoir, whichever suits the system.

Key Features & Benefits

• Adjustable venturi aeration — mixes air into the water flow at the pump, delivering oxygenated nutrient solution to the root zone.
• Stimulates root growth — combined water and air delivery supports faster root development.
• Inline or submersible operation — install in the irrigation line or fully submerged in the reservoir.
• Magnetic drive, oil-free — no shaft seals, no oil contamination risk in the nutrient reservoir.
• 1/2in FPT inlet, 1/2in barbed outlet, 10ft cord — connects to standard 1/2in hydroponic irrigation fittings with convenient placement flexibility.

Who Should Use This

Hydroponic growers running recirculating systems such as NFT, DWC, or flood-and-drain, where root-zone aeration matters as much as nutrient delivery, are the direct fit for this pump.

About Danner

Danner Manufacturing has been family-owned since Eugene Danner Sr. started the business in a Brooklyn cellar in 1934, later moving operations to Islandia, New York in 1974. The Supreme Hydroponics™ Recirculating Aerating Pump line applies that manufacturing background specifically to root-zone aeration for hydroponic growers.

Frequently Asked Questions

How does the venturi aeration work?

As water flows through the venturi, it creates a pressure differential that draws in air and mixes it into the stream. That delivers dissolved oxygen along with nutrients to the root zone in one pass.

Is the venturi adjustable?

Yes — the venturi can be adjusted to control how much air mixes into the flow. That lets you tailor aeration to your specific system size and plant needs.

Can this pump be used inline, out of the water?

Yes — this pump supports both inline (external) and submersible installation. Choose whichever fits your existing irrigation plumbing better.

Is this pump oil-free?

Yes — magnetic-drive technology eliminates oil from the motor entirely. That keeps your nutrient solution uncontaminated across continuous operation.