10" x 34" or 34" x 10" Cube Core Eggcrate Return Air Grille w30h30 Design – Removable frame for

Design – Removable frame for easy filter change & cleaning - uses a 1" thick filter

actual front end outer dimensions are approximately 27 5/8" width X 8 5/8" height

For 8" duct opening

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10" x 34" or 34" x 10" Cube Core Eggcrate Return Air Grille w30h30 Design – Removable frame for+ Product Details Size 10" x 34" or 34" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" X 35. 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