The Garland 4523902 Range Briquettes are listed as an 84-piece set for Garland gas range and broiler assemblies. Installed within the cooking area, these briquettes sit in the broiler section and form part of the heat distribution arrangement above the burner. Garland documentation identifies this part as item 63 for GF-BRL models and lists it for selected GT-series equipment. https://partsfe.com/briquettes-20lb-box-for-garland-part-4523902