Aqua One Airline Check Valve 2 Pack
Aqua One Airline Check Valve 2 Pack

Description:

Keep your fish safe with an Aqua One Airline Check Valve. Easy and convenient to install so your aquarium can perform at its best! Ensure a check valve is used whenever an air pump is positioned at or below the waterline of the aquarium to prevent water from flowing back from the tank through to the air pump.