Penn-Plax Check-Valve/Air-Filter

Check valve with Air filter for airline tubing.

• Provides clean filtered air to your aquarium.
• Keeps your air pump safe from water damage.
• Reduces particulate matter that can clog air stones & other devices.
• Prevents siphoning due to a power failure or when disconnecting other accessories Penn-Plax Check Valve/Air Filters are perfect for use with your aquarium air pumps & accessories.
• The air filter provides clean air to your pump removing small particulate matter that may clog air stones or other air devices.
• The check valve engages whenever your air pump is off or in the event of a power outage stopping water from siphoning back into your air pump and preventing possible water damage.
• The check valve also makes adding and removing devices safer and can save you the cost of replacing an expensive device or changing contaminated air lines.