34" x 34" Cube Core Eggcrate Return Air Grille 18" Round Duct Pipe + Product Details Size –

+ Product Details Size – 14" x 24" or 24" x 14" is the size for the duct opening measurement only

Actual Filter Size – 33 3/4"w x 33 3/4" x 1"

For 14" duct opening

listed size +1

+ Product Details Size – 18" Corner Baseboard Grille - White - HVAC corner vent cover

34" x 34" Cube Core Eggcrate Return Air Grille 18" Round Duct Pipe + Product Details Size –+ Product Details Size 34" x 34" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 35. 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 electric