Valterra A10-3353VP Rotating/Dampered Heating and A/C Register - 4" ID x 5-3/8" OD, Black

This Valterra Air Vent is a circular ceiling register with a black finish and is made to accommodate 4" flex duct. This 3840 grille is made to promote greater efficiency for heating and air conditioning. It has directional capabilities with a 360-degree rotation. The worm-drive damper allows for airflow adjustments. To use, 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 duct This rotary grille incorporates a unique worm drive damper for increased operational efficiency Made with ABS plastic/UL94 which allows heat to pass through without damaging the vent Color: Black Weight: 1 lb Overall Diameter: 5-3/8" Tube collar depth: 2-1/8 Tube collar: 3-15/16 Limited 90-day manufacturer warranty Valterra Air Vent With Damper - Black - 4"