Fusion Check Valve
Item # 240195 / Manufacturer Part # 421599
The Fusion Check valve is an easy way to prevent back-flow, or back-siphoning in the event of power failure or equipment malfunction. The duckbill style valve is easily installed in the airline.
For more information on aquarium aeration, please see our article on Air Pumps.
Fusion Check Valve 1/20/2015
Reviewer: Ray Schwarz
Have used these as long as I can remember, never had a failure syphon back.
So Far- So Good 6/4/2014
This product is a new addition to the air lines. I've installed them next to the pumps and have older valves closer to the water surface. With the thought of all valves will eventually fail, these are the back-ups. So..., "So far-So good".
Check Valve 1/19/2014
The best I've ever used
what can i say worked as advertised . with little to no loss in flow .like the others .