12" x 26" or 26" x 12" Cube Core Eggcrate Return Air Grille Color_R-8.0 Pink + Product Details Size –

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 52 5/8" height

Design – Fixed hinged for easy filter change & cleaning - uses a 1" thick filter

+ Product Details Size - 36"w X 36"h X 2"d (for duct opening measurement only)

For 10" Round Duct Opening - Spiral or Flex

12" x 26" or 26" x 12" Cube Core Eggcrate Return Air Grille Color_R-8.0 Pink + Product Details Size –+ Product Details Size 12" x 26" or 26" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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