Valterra A10-3350VP Rotating/Dampered Heating and A/C Register - 4" ID x 5-3/8" OD, White

The Valterra Air Vent With Damper 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. Rotaire grille incorporates a unique worm drive damper for increased operational efficiency. Made from ABS plastic that allows heat to pass through without damaging vent. Color: White. Sold individually. Overall Diameter: 5-3/8". Tube collar depth: 2-1/8. Tube collar: 3-15/16. Weight: 1 lb. Limited 1-Year Manufacturer Warranty. Valterra Air Vent With Damper - White - 4"