4 x 8 Vent Covers

These decorative registers and return grilles are to be installed in a 4" x 8" duct opening. Most of the 4" x 8" vent covers either come with the damper (or louver) to control airflow or you can add them if needed.

Vent Cover Measuring Basics - How to Measure Vent Covers?

How to measure vent covers

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