Heating/ Cooling Register; B&B Molders; Thermovent Heat Vent; Ceiling Mount; Fits 4 Inch Flexible Ducts; Round; 4-1/8 Inch Diameter Cutout Dimension; 4 Inch Diameter Outside Dimension; 360 Degree Rotation; With Damper; Polar White; With Installation Kit; Single; B&B Cross Reference HV4DPW-A
