GLI Pool Products is an American success story. Founded in 2006 in Youngstown, Ohio, GLI grew nearly 400% by doing the basics brilliantly: custom vinyl pool liners and safety covers, built fast and built right. Using lean manufacturing and a workforce of more than 340 people running three shifts, GLI ships custom inground liners and safety covers in 72 hours or less — an industry-leading turnaround that matters when your pool is sitting empty. The lineup also includes above-ground liners, pool fencing, and accessories, serving customers across the U.S. and internationally. In 2020 GLI joined the Latham Group, North America's largest manufacturer of in-ground residential pools, while continuing to operate from its Youngstown plant. When you order a GLI liner or cover, you're getting a made-in-Ohio product from a team that has never had a layoff in company history.