Fits One 8" x 8" and One 8" x 13"
Maximum inner diameter of cap 6" x 21" to 9 1/2" x 24"

Type 304 Stainless Steel - 3/4" mesh is standard - Patented 3 piece design - 5/8" mesh available at extra cost - 18 gauge one piece base with built-in screening - 3" inch wide base compensates for uneven flue tile heights - Available in three stock sizes - 24 gauge hood.