Standard Universal RV Roof Vent (12 volt POWERED FAN) w/ White Wedge Style Lid Heng's Industries Part # 71112A 12 VOLT Powered Fan Push Button On/Off - MANUAL CRANK HANDLE to open lid - MESH SCREEN ROUGH CUT-OUT OPENING DIMENSIONS (this is the hole you will need in your roof) 14 1/2” X 14 1/2 EXTERIOR MOUNTING FLANGE DIMENSIONS (sits on the top of your unit) 16 1/2” X 16 1/2” - NO MOUNTING HARDWARE you must provide caulk/putty and screws ****WARNING All Vent Metal Flanges are VERY SHARP use caution when touching WARNING **** 3" Inner Garnish / Trim Ring Heng's Part #90092 - 3" Vertical Leg (How far up into your ceiling it goes) 1 ¼” Wide Mounting Flange (trim you see inside on the roof) Standard Universal RV Roof Vent (12 volt POWERED FAN) w/ White Wedge Style Lid Heng's Industries Part # 71112A REMOVABLE SCREEN made from strong, fine mesh HANDLE Manual Crank Style **12 VOLT POWER ONLY** 110/115/220 volt such as in a house or generator will damage the unit FAN MOTOR 12 volt FAN BLADE 6" ON/OFF SWITCH Push Button Style ROUGH CUT-OUT OPENING DIMENSIONS (this is the hole you will need in your roof) 14 1/2” X 14 1/2” ROOF FLANGE Galvanized Steel with Mill Finish EXTERIOR MOUNTING FLANGE DIMENSIONS (sits on the top of your unit) 16 1/2” X 16 1/2” WARNING **** All Vent Metal Flanges are VERY SHARP use caution when touching **** WARNING 3” OEM INSIDE GARNISH SHROUD Part #90092 Trim ring slides into track built-into screen housing 3” Vertical Leg (How far up into your ceiling it goes) 1 1/4” Wide Mounting Flange (trim you see inside) COLOR white NO MOUNTING HARDWARE you must provide caulk/putty and screws