A4 (AC/DC Oxygenation Pump)

Continuous Aeration, Even During Power Outages

The A4 AC/DC Oxygenation Pump is designed to provide reliable, uninterrupted oxygen supply for freshwater aquariums. With support for both AC power and DC backup, it helps maintain essential aeration during power failures—protecting fish and beneficial bacteria when oxygen levels are most at risk.

AC / DC Dual Power Support

The A4 operates on standard AC power during normal conditions and automatically switches to DC backup when power is interrupted, ensuring continuous oxygen supply without manual intervention.

Stable Oxygen Output

Designed to deliver consistent airflow, the pump supports gas exchange and helps maintain dissolved oxygen levels essential for fish health and biological filtration.

Emergency Protection for Fish

During power outages, oxygen depletion can happen quickly—especially in stocked tanks or sump systems. The A4 helps reduce this risk by keeping aeration running when it matters most.

Compact & Practical Design

The pump is compact and easy to position, making it suitable for home aquariums without taking up excessive space.

Product Overview

The A4 AC/DC Oxygenation Pump is a practical safeguard device, not just a daily-use air pump. It is especially useful for aquariums housing valuable or sensitive fish, where uninterrupted oxygen supply is critical during unexpected power disruptions.

Specifications (Geoda-Sold Model)

Usage Notes

• Designed for freshwater aquariums

• Recommended for tanks with higher stocking density or sump systems

• DC backup function activates automatically during power interruption

• Backup performance depends on battery condition (if applicable)