Sandwich Style High Temp Round Duct, Ductmate, Mfr#: GRDR241840F2GA

Duct Access Door, Door Height 18 in, Door Shape Rectangular, Door Thickness 1 1/8 in, Door Width 24 in, Fire Rating Not Rated, For Nominal Duct Diameter 37 in, 38 in, 39 in, 40 in, Hinge Style None, Insulation Material Not Applicable, Latch Type Thumbscrews, Material Thickness 18 ga, Maximum Temperature Rating 2,300 Degrees F, Mounting Stud Length 2 in, Number of Mounting Stud 2, Observation Port Height Not Applicable, Observation Port Material Steel, Observation Port Width Not Applicable