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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Marked circles for cutout
actual front end outer dimensions are approximately 27 5/8" width X 34 5/8" height
Actual Filter Size – 13 3/4"w x 33 3/4" x 1"
These are specially sized to fit into all drop ceilings
18" x 32" or 32" x 18" Cube Core Eggcrate Return Air Grille 12" Round Duct Pipe Marked circles for cutout+ Product Details Size 18" x 32" or 32" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" X 33. 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