The mounting flange measures 2 inches in width by 2 inches in height
Something the other makers don
make the Bobrick B-6107x48 Stainless Steel Heavy-Duty Shower Curtain Rod your pick
Intended for recessed mounting
Bradley 169-168 Pipe Plug-1/2"Brass Replacement Part
Fasco D602 Blower Motor, 1/50 HP, Split-Phase, 1500 RPM, 115V DesignerSeries The mounting flange measures 2Features: Air over Item: 3. 3 Inch Diameter Motor, Motor Type: Split Phase, HP: 1 50, Nameplate RPM: 1500, Voltage: 115, Enclosure: Totally Enclosed, Rotation: CW, Hz: 60, Phase: 1, Speeds: 1, Bearings: Sleeve, Shaft Number: 1, Shaft Length: 2. 25", Shaft Dia.: 0. 25", Thermal Protection: Yes, Cooling: Air Over.