Valterra A10-3345VP Rotating Heating and A/C Register - 4" ID x 5-3/8" OD, White

The Valterra Heat Vent is a circular ceiling register with a white finish and is made to accommodate a 4" flex duct. Simply turn the center knob to smoothly open and close the vents. 360 directional capabilities. Features: Tapered tube collar Wide mounting flange Free-flow vanes Designed to accept all types of 4" flex ducts. Made from ABS plastic that allows heat to pass through without damaging vent. Color: White. Sold individually. Overall Diameter: 5-1/2". Tube collar depth: 2-1/8". Tube collar: 3-15/16". Weight: 0.24 lbs. Limited 90-day manufacturer warranty. Valterra Heat Vent - White - 4"