Ventline (VA0445-26 Birch White Plastic Ceiling Garnish Ventline Ventadome Birch White Plastic Ceiling Garnish for 14.25 Inch x 14.25 Inch radius corner roof Ventadomes Note: Roof thickness shown is for non-powered and 12-volt installation; for 110-volt, add 1/4 Inch to roof thickness sizes 2.13 Inch Leg Length, for 1.88 Inch to 3 Inch roof thickness