Valterra A10-3354VP Heating/ Cooling Register; Ceiling Mount; 4 Inch Diameter; 360 Degree Rotation; White; Plastic Attributes Shape: Round Mounting Location: Ceiling Diameter: 4 Inch Length: Not Applicable Width: Not Applicable Color: White Material: Plastic With Damper: No Marine: Yes   Product Description Easy to replace heating and air conditioning vent register. Two piece construction allows for easy removal and cleaning. 360 degree rotation adjustable register for roof A/C. Features & Benefits 360 Degree Rotation Built To Deliver Excellent Levels Of Quality And Convenience Perfect To Enhance Your Comfort And Safety Comes With Installation Hardware No Supplier Warranty