where can I find a check valve?
 

I need a check valve to fit 1/4"o.d. water tubing anyone know where I can find one.

An air check valve or a water check valve? I don't know where to get one for water that small...I wonder if an air one would work for water though....

I have an air checkvalve on my topoff pump... its been working fine for the last few months. The ends of the valve are small for 1/4" tubing, but I cut a bit of airline tubing, stuck it on the ends of the valve, then placed the 1/4" tube over that and it fits as snug as a bug.

HTH
-Richer

Thanks for the replies, I found what I was looking for at aquariumpros.ca. They are john guest quick connect for water application.