Phifer offers the best quality insect screening for windows, doors and outside structures. Built to withstand debris from harsh winds and storms, keep out insects and other unwanted guests, but still allow for cooling breezes to flow through, these fiberglass screens make the perfect choice for any space that's exposed to the more severe elements.18 x 16 mesh. Rust and corrosion-resistant. No shrink or stretch. 100' per roll.