Danner Pond-Mag 350 GPH magnetic-drive pond pump, Black — quiet, epoxy-encased motor

The Danner Pondmaster Pond-Mag 350 GPH is a magnetic-drive submersible pump built for continuous, quiet circulation in small to mid-size ponds.

Designed for backyard ponds, water features and circulation tasks, the Pond-Mag series combines a magnet-driven impeller with an epoxy-encased motor to deliver maintenance-friendly performance. This compact black pump is engineered to run submerged or inline, with a rigid pre-filter and ceramic shaft that reduce wear and extend working life. Certified to UL/ETL standards, the model suited to ~350 GPH provides a dependable option for ponds that need steady flow without noisy operation.

How does the Pond-Mag 350 GPH keep water moving reliably?

The Pond-Mag uses a magnet impeller assembly instead of traditional shaft seals, which minimizes parts that wear and fail. The motor is fully epoxy-encased to protect electrical components from moisture, enabling long-term continuous operation when installed correctly. Combined with the ceramic shaft and pre-filter, this design reduces the need for frequent maintenance and helps keep pumps running smoothly.

• Magnet-driven impeller eliminates conventional shaft seals.
• Epoxy-encased power unit resists moisture intrusion.
• Ceramic shaft and pre-filter cut down on particulate damage.
• UL/ETL certified for recognized safety standards.

What pond sizes and applications suit a 350 GPH model?

This mid-range Pond-Mag output is ideal for ponds toward the small-to-medium end of the spectrum, providing good turnover for fountains, waterfalls, and circulation. Danner’s pump sizing guidance helps match flow to pond volume and the intended feature—too little flow will underperform, too much may overwhelm plantings or delicate displays.

• Best for ponds roughly 150–550 gallons when used for circulation.
• Works well with small waterfalls and water-feature plumbing.
• Suitable as a primary circulation pump or for run-off fountains.
• Operates submerged or inline depending on installation needs.

How energy-efficient and quiet is this magnetic-drive pump?

The Pond-Mag line emphasizes low-noise, continuous operation—its magnetic impeller design reduces mechanical friction and sound. At typical mid-range models the electrical draw remains modest, helping keep running costs reasonable. The pump’s 18-foot cord and compact footprint also make placement flexible, which can reduce vibration transfer to decks or supports.

• Low acoustic profile due to magnet impeller design.
• Typical power rating keeps energy use economical during continuous runtime.
• Long cord (18') offers placement flexibility to find quiet mounting points.
• Compact housing minimizes noise-transmitting surfaces.

What are the key installation and performance specs I should know?

The Pond-Mag 350 GPH model includes a rigid pre-filter, a 1/2" inlet and outlet thread configuration, and a ceramic shaft for durability. Electrical connections are protected by the epoxy-encased motor, and the pump is rated to run submerged or inline. Knowing the wattage, amperage and connection types helps match plumbing and power for a trouble-free setup.

• Inlet: 1/2" FPT; Outlet: 1/2" MPT for common fittings.
• Max power example: 35 W / 0.6 A at 120 V, 60 Hz (model-specific).
• Includes rigid pre-filter to limit debris entry to the impeller.
• Operates fully submerged or in inline configurations.

Who is this pump for: Gardeners, pond hobbyists and landscape professionals looking for an affordable, low-maintenance pump for small to medium ponds will appreciate the Pond-Mag 350 GPH. It suits backyard water gardens, small waterfalls, decorative fountains and basic circulation needs where quiet, continuous performance and simple servicing are priorities. Choose this model if you want a compact, certified pump that balances steady flow, energy economy and reduced upkeep.