Petco Check ValveOur Petco Check Valve is a simple and indispensable item that attaches in the airline between the air pump and top of aquarium and prevents water from back siphoning into your air pump that can cause water damage.
This item is not suitable for children. Remove from packaging and rinse thoroughly with warm water before placing in aquarium. For proper use, ensure air tubing is connected snug. Inspect product and replace if it becomes kinked or damaged. If color transfer occurs, remove product from aquarium.Simply cut airline at convenient location between air pump and first outlet. Ensure that indicative end is furthest from the air pump outlet. Attach airline to both ends of the check valve. If air does not flow when pump is turned on, ensure check valve is properly inserted. Reverse if necessary.