Curb Cap For Fan Diameter 24 in For Fan Type Tubeaxial Mounting Hole Diameter 1/2 in Material Steel Body Diameter 32 in Bolt Circle Diameter 24 3/8 in Compatible Curb Grainger Part Number 2RB80 4HX42 4HX50 Finish Baked Enamel For Use With 3C411 4TM85 Maximum Inlet Air Temperature 200 Degrees F Metal Material Thickness 1/2 in Overall Height 6 in Overall Length 34 in Overall Width 34 in Product Type Curb Cap