Bioscape Check Valve (2pk)
The Bioscape Airline Check Valves help prevent water from siphoning back into the air pump or other aquarium equipment during power outages or system disruptions. This protects your pump and other devices from damage and reduces the risk of water being drawn out of your aquarium.
Product Features
- Prevents reverse siphoning during power loss or equipment failure
- Protects air pumps and connected aquarium systems
- Simple to install and compatible with standard airline fittings
| Specification | Detail |
|---|---|
| Quantity | 2 pieces |
| Material | Food-grade silicone |
| Compatibility | Standard airline connectors |
FAQ
Can these check valves be used with all types of air pumps?
These check valves are compatible with standard airline fittings and work with most air pumps that use airline connections.
Do the check valves require any special installation?
No special tools or installation are required. Simply connect the check valve to the airline line between the air pump and the aquarium.
Will the check valves work during a power outage?
Yes, the check valves automatically prevent water from flowing back into the air pump during a power outage or system interruption.

Zoe Bower –
I installed these check valves after a power outage caused water to siphon out of my tank. They’ve been working well since then. Easy to attach and no leaks detected. A simple but effective solution for protecting my pump.
Colin Mackay –
Used them during a storm when the power went out. No water siphoned back into the pump. The fit is snug and they’ve held up well over several weeks of use.
Alison Lee –
Great product for preventing water loss. I noticed no issues with the pump after installation. Works perfectly with my air stone setup and has been reliable for months.