The one I bought is no longer offered. I looked at other units for around $45 on e-bay I can take a picture of mine when I get home.
Amazon.com: Bare Bones Ozone Generator: Home & Kitchen This is the one i've been looking at. I believe it was one that was suggested earlier.
Here is the one I've been looking at. Possibly buying this week, unless someone has a better option. Around $50 with shipping on EBay.