Fits 20x16 and 16x20 Duct Opening | Aluminum Eggcrate Return Air Grille | Low Noise & High Air Flow, Rust Proof Vent Cover Grill for Sidewall & Ceiling | White | Outer Dimensions: 21.75" X 17.75"

Features

• HOW TO MEASURE - Always measure the duct opening to determine which size you should order. Duct opening size = listed size. If the duct opening on the is 20" x 16" please order 20x16 size option. The outer dimensions of the grille are 1.75" wider. Handua eggcrate return air grille used for side-wall or ceiling openings.
• EFFICIENT HIGH AIRFLOW - Engineered for high-performance, our eggcrate return air grille facilitates the smooth passage of a significant volume of air. This optimal design ensures that your air conditioner operates effortlessly with low noise, contributing to reduced electric consumption.
• RUST-FREE DESIGN - Crafted with an aluminum frame and aluminum cube core, our vent cover ensures long-lasting durability without the worry of rust. Make a wise investment in a product engineered for longevity, safeguarding the integrity of your air ventilation system over time.
• ELEGANT FINISH - Enjoy a vent cover with a powder-coat finish that adds a beautiful touch to your space.