Skip to content
Atlantic Water Gardens MD550 TidalWave Mag-Drive submersible pump, removable pre-filter and tapered outlet fitting visible.

Atlantic Water Gardens MD550 TidalWave Mag-Drive Submersible Pump

Brand: Atlantic Water Gardens
Save 25%
$134.83
$101.12
SKU MD550

Notify me when back in stock

The Atlantic Water Gardens MD550 TidalWave Mag-Drive pump is a compact, heavy-duty submersible pump engineered for small ponds, waterfalls, fountains, and filtration systems. Magnetic-drive technology delivers reliable, energy-efficient performance while minimizing wear on moving parts.

  • Performance: Delivers up to 650 GPH maximum flow and approximately 385 GPH at 5' of head; consult the performance chart in the MD-Series manual for exact values.
  • Power & Size: Operates on 115V at 40W with a 20' power cord; dimensions are 4.5" L x 3.5" W x 5" H for compact installations.
  • Plumbing & Fittings: Oversized 1" male threaded inlet and 3/4" male threaded outlet; includes a tapered 3/4"–1" barbed outlet fitting for common tubing sizes.
  • Durable & Serviceable: Removable pre-filter, replaceable impeller assembly, oversized ceramic shaft, rotating volute and half-twist access allow easy servicing without tools.
  • Documentation & Warranty: Includes the MD-Series manual and a limited manufacturer's warranty; review the manual or manufacturer website for warranty terms and installation guidance.

Designed for continuous submerged operation in freshwater environments, the MD550 balances strong hydraulic performance with low energy consumption. Routine cleaning of the pre-filter and impeller chamber will extend service life; follow the included manual for maintenance, safety, and winterization instructions.

Reviews

Frequently Asked Questions

What flow rate and head can the MD550 handle?
Max flow is 650 GPH; at 5' it delivers about 385 GPH. See the MD-Series performance chart in the manual.
Is the MD550 safe for ponds with fish?
Yes. The MD-Series is designed for freshwater ponds and water features; do not use in saltwater or with corrosive liquids.
How do I maintain the MD550 for long life?
Periodically clean the removable pre-filter and impeller chamber, and follow the manual's maintenance and winterization steps.
What warranty covers this pump?
The pump carries a limited manufacturer's warranty. Refer to the included manual or the manufacturer website for full terms.

Add a FREE Sole Saver Stainless Steel Boot Protector for Shovels

Spend $135+ Add a FREE Sole Saver Stainless Steel Boot Protector for Shovels