The Montague 9346-7 Cast Iron Bottom Grate provides stable and even support for cookware while promoting consistent heat distribution. Measuring 4" x 19-15/16", this grate features 17 cross bars and 4 ribs, designed to hold pots and pans securely over the heat source. It works by allowing heat to circulate through the gaps while maintaining direct contact with cookware for efficient cooking. The cast iron construction retains and distributes heat evenly, supporting steady performance during use. Its durable design withstands high temperatures and frequent use, helping extend service longevity.