Trax 2-30 replacement wheels

Can anyone point me to the Trax 2-30 replacement wheels online? ACK doesn't seem to have them.
One of my wheels has a slow leak...

http://www.wheeleez.com/beach-wheels-polyurethane.php


They're having a 15% off sale right now.

If you could find the leak the wheel material is repairable.

Thanks Jim. It turned out to be the valve core which I got replaced for $1 at a bike shop. Seems to be holding air now.