Lifegard Aquatics Airline Bulkhead Kit and Parts Item:Complete Kit this bridge may include knots

this bridge may include knots and other natural blemishes

This is essential for proper use of ionizers

Must be used with a GFI-protected outlet

System turns off during the day to save power

Lifegard Aquatics Airline Bulkhead Kit and Parts Item:Complete Kit this bridge may include knotsShips from manufacturer, typically in 5 7 business days The Lifegard Aquatics Airline Bulkhead Kit contains everything needed to inject air through the wall or bottom of an aquarium tank, hiding the unsightly tubing. When attached to an air pump, it can be used to drive any air stone! Kit includes: Airline bulkhead with gasket and lock nut 6' of airline tubing 2 check valves Elbow fitting Instructions