The Square Chimney Caps Market are devices used to cover and protect the top of a chimney. They are typically made of metal or masonry, and come in various shapes and sizes to fit different chimney types. The square chimney cap is designed specifically for chimneys with a square or rectangular flue.   Top Companies Olympia Chimney Supply Inc, Reliance Mfg, Chim Cap Corp, GLL, Fireplace...