ASF NewJet DC Pump — 1200 GPH Controllable Submersible Return/Utility Pump

Overview

The ASF NewJet DC 1200 GPH is a high-output, ultra-quiet controllable DC pump engineered for reef, freshwater, and planted systems. With precise speed control, soft-start, and a convenient feed pause, it’s ideal as a main return on larger nano-to-midsize tanks or as a powerful dedicated feed for reactors and UV—delivering smooth, efficient flow with minimal noise and heat.

Key Features

• Up to 1200 GPH max flow (real-world flow depends on head height/plumbing)

• External DC controller with multiple speed steps for fine tuning

• Feed mode (temporary pause) to keep food in-tank during feeding

• Soft-start ramp reduces splash and plumbing shock

• Very quiet, low-vibration operation

• Energy-efficient DC motor designed for continuous 24/7 duty

• Marine & freshwater safe

• Submersible install with vibration-damping suction base

• Stepped barbed outlet for easy tubing connection

Use Cases

• Primary return pump for nano-to-midsize sumps/AIOs needing higher turnover

• Dedicated feed for carbon/GFO/biopellet/UV reactors

• Circulation for frag tanks and quarantine systems

• Mixing stations and water features

Installation & Maintenance

1. Rinse pump, fittings, and tubing before first use.

2. Mount fully submerged in sump or display; ensure stable water level at intake.

3. Attach tubing to the stepped barbed outlet; secure with a clamp if needed.

4. Use the controller to set speed; confirm overflow/weir balance and sump level.

5. Monthly (or as needed): Unplug, remove front cover, pull impeller and clean the impeller/cavity to remove film/debris for peak performance.

Product Specifications

• Model: ASF NewJet DC — 1200 GPH

• Max Flow: ~1200 gallons per hour

• Control: External DC controller (multi-speed) + Feed Pause

• Placement: Submersible only

• Outlet: Stepped barbed fitting (fits common flexible aquarium tubing)

• Water Type: Marine & freshwater compatible

• Duty Cycle: Continuous 24/7 operation

What’s in the Box

• ASF NewJet DC 1200 GPH pump

• External DC controller

• Power supply

• Stepped barbed outlet fitting(s)

• Suction-cup base

• Quick start guide

Sizing tip: Vertical lift, elbows, valves, and small-ID tubing reduce effective flow. Select a pump with headroom and use the controller to dial down to your target turnover.