ASF MX Pump — 210 GPH Compact Submersible Utility Pump

Overview

The ASF MX 210 GPH is a compact, reliable submersible circulation/utility pump built for nano and mid-size applications. Use it for return flow on small AIO tanks, media/reactor feeds, frag racks, fountains, or general utility tasks where quiet operation and precise flow control matter.

Key Features

• 210 GPH max flow in a compact footprint

• Adjustable output with front-mounted flow dial for fine tuning

• Quiet, energy-efficient motor designed for continuous 24/7 operation

• Submersible, freshwater & saltwater safe—reef and planted-tank friendly

• Stable mounting with vibration-damping suction feet

• Barbed outlet for easy tubing connection (standard flexible vinyl/silicone)

Use Cases

• Nano/AIO return pump (check head height and plumbing)

• Carbon/GFO/biopellet reactor feed

• Utility circulation for frag tanks and QT systems

• Fountains, tabletop features, and water features

Installation & Care

1. Rinse the pump and fittings before first use.

2. Place fully submerged in a high-flow-safe area (sump or display).

3. Connect tubing to the barbed outlet and tighten clamps as needed.

4. Set flow with the adjustment dial; verify water level and return chamber stability.

5. Monthly (or as needed): unplug, remove front cover/impeller, rinse away debris and film to maintain performance.

Product Specifications

• Model: ASF MX Pump – 210 GPH

• Flow Rate: Up to 210 gallons per hour (actual flow varies with head height and plumbing)

• Placement: Submersible only

• Outlet: Barbed fitting (compatible with common aquarium tubing)

• Media/Water: Freshwater & marine safe

• Duty Cycle: Continuous operation

What’s in the Box

• ASF MX 210 GPH submersible pump

• Barbed outlet fitting(s)

• Suction-cup base

• Quick start guide

Sizing tip: For use as a return on small systems, account for vertical lift and elbows/valves—each reduces effective flow. When in doubt, choose a pump that exceeds your target turnover and throttle down with the built-in flow control.