6" x 26" or 26" x 6" Cube Core Eggcrate Return Air Grille w16h16 The unique sponge gasket ensures

The unique sponge gasket ensures an airtight seal

Traditional HVAC systems were designed for cold air

14" x 8" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

Actual Filter Size – 7 3/4"w x 13 3/4" x 1"

6" x 26" or 26" x 6" Cube Core Eggcrate Return Air Grille w16h16 The unique sponge gasket ensures+ Product Details Size 6" x 26" or 26" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 27. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing