Check Valve with Air Filter

Prevents damage to your air pump due to back siphoning in the event of a loss of power. A check-valve is recommended for all air pumps located lower than the aquarium.

To install, simply cut the airline at a convenient location between the air pump and its first outlet. One valve per package. Fits standard and mini airline tubing.

Each valve measures approximately 2" in length. Valve also contains a small amount of material to filter particles from the air before it enters your aquarium.