Aqua One Air Line Check Valve 2pk

Aqua One Air Line Check Valve - 2 Pack

Back-siphoning happens when there is a sudden power outage or your air pump is suddenly unplugged. It is crucially dangerous and can ruin your air pump, empty your aquarium, damage your floors and create a shock hazard. Do not allow this to happen by using Aqua One's air line check valve.

Key Benefits:

• Small and compact
• Fits standard aquarium airline 4mm inner diameter
• Allows air to travel in one direction only
• Stops water from coming back down the air tube
• Easy to install