No-See-Um Screen, sometimes called 20x20 mesh screen is a finer mesh fiberglass to protect against no-see-um, gnats, sand flies, and other tiny insects common in low marshy and coastal areas. Stronger Screen Suitable for Patio, Porch and Pool Enclosures
Charcoal color. Mesh: 20 x 20, Diameter: .013.
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No more gnats!
Very pleased with this product. Seems to be doing its job just as advertised, keeping gnats and no-seeums out of the house. Customer service also great, follow up great, screen arrived promptly. Thank you!