Airline Check Valve Carded (2 Pack) – Aqua One
Protect your air pump and prevent water damage with the Airline Check Valve Carded (2 Pack) – an essential safety accessory for any aquarium using an air pump.
These non-return valves stop water from siphoning back down the airline tubing in the event of a power outage or pump failure. Without a check valve, water can travel backwards into your air pump, potentially causing damage or electrical hazards.
Simple to install and highly effective, this 2-pack ensures you have a spare on hand or can run protection on multiple airline setups.
Key Features:
- Prevents Backflow of Water
- Protects Air Pumps from Water Damage
- Simple Inline Installation
- Compatible with Standard Airline Tubing
| Specification | Detail |
|---|---|
| Quantity | 2 Pieces |
| Material | Plastic with Rubber Seal |
| Compatibility | Standard Airline Tubing (1/4 inch) |
| Installation Type | Inline, Push-Fit |
FAQ
Can I use these check valves with all types of air pumps?
These check valves are compatible with standard air pumps that use 1/4 inch airline tubing. Ensure your pump and tubing match this size for proper fit.
Do I need to remove the existing airline to install the check valve?
No, the check valve is designed for inline installation. Simply insert it into the airline tubing between the pump and the air stone or substrate.
How do I know if the check valve is working properly?
The valve will prevent water from flowing backward when the pump stops. If water does not enter the pump during a power outage, the valve is functioning correctly.

Claire Jackson –
Installed the check valves on both my air pumps and have not had any water backflow issues since. Easy to fit and reliable. Great for preventing pump damage during power outages.
Emma Ball –
Works well with my standard airline setup. The installation was quick and the valve stayed secure. I appreciate having a spare in case one fails.
Stewart Sharp –
After a power outage, I noticed water didn’t enter the pump. This confirms the check valve is working. No leaks or damage reported. Highly recommend for any aquarium setup.
Alan Lambert –
Simple to install and fits perfectly with my existing tubing. I use it on both my main and backup air pump. It’s a small part that makes a big difference in safety.