AQUA ONE AIR LINE CHECK VALVE
Connect a check (one-way) valve to air line tubing to prevent water back-siphoning down your air line when there is a power outage. Back-siphoning is extremely dangerous and can ruin your air pump, empty your aquarium, damage your floors and create a shock hazard.
- Small and Compact
- Fits standard aquarium air line 4mm inner diameter
- Allows air to travel in one direction only
- Stops water coming back down the air tube
- Easy to install – just cut the airline between the air stone and the air pump and insert check valve into air line
| Part Number | 10121 |
|---|---|
| Material | Plastic |
| Connection Type | 4mm inner diameter air line |
FAQ
How do I install the check valve?
Cut the air line between the air stone and the air pump, then insert the check valve into the tubing.
Does this valve work with all aquarium air pumps?
Yes, it fits standard 4mm inner diameter aquarium air lines, which are compatible with most air pumps.
Can water flow through the valve in both directions?
No, the valve allows air to flow in only one direction and prevents water from flowing back.
Phil Vance –
Installed it during a power outage test and it worked perfectly. No water flowed back into the air line. Simple to fit and reliable.
John Poole –
Great for preventing back-siphon during outages. Fits my 4mm air line exactly. A small but essential part for aquarium safety.
Kevin Quinn –
Used it after a power failure and saw no water going back into the tubing. Very effective and easy to install.