I used two sets of "GEO LP Universal Privacy Screen,
Item #: 133674, Model: 13367 $69.98" from Lowes .com
(http://www.lowes.com/lowes/lkn?actio...4-10381-133674)
to hide two air conditioner units, side by side. If you have one air
conditioner unit, then one set may suit your purposes.

I consulted a paint retailer, who recommended painting the screen with
100% acrylic primer and then 100% acrylic latex paint, which I did.
The paint is custom colored to match the house. The screen looks
great, it blends in well with the house, and it provides for plenty of
air flow around the air conditioner units. The screen is taller than
the units.

Several neighbors have complimented the screen, without prompting.

Good luck with your project.