You guys are so dead on with the mesh... It's a 158/55 (slightly thinner thread that is usually found in a 180 or 200 mesh count) in a 62" wide roll.
The $8.95 price is pretty typical for a lower end mesh. What you want to watch out for is if the mesh is a LOW elongation mesh or not. If it doesn't specifically say low elongation, it will just keep stretching and stretching until it has no tension. This means having to push harder and harder to clear the screen.
I can't match the price and the free shipping, but if you want a really great quality mesh, I have a 158 that I can match the price on if you're willing to pick up the shipping. Just shoot me an email if you want -
ron@shurloc.com