20" x 30" or 30" x 20" Cube Core Eggcrate Return Air Grille Return Quality Packaging – Every part CL 34 12B 35 Product Details Size 6 Extruded Aluminum Ceiling

Quality Packaging – Every part is hand inspected for quality before it is packaged

+ Product Details Size – 14" x 20" or 20" x 14" is the size for the duct opening measurement only

guaranteeing efficient ventilation throughout your space

+ Product Details Size - 25"w X 20"h is the size for the duct opening measurement only

providing efficient performance of up to 300m3/h

20" x 30" or 30" x 20" Cube Core Eggcrate Return Air Grille Return Quality Packaging – Every part CL 34 12B 35 Product Details Size 6 Extruded Aluminum Ceiling Quality Packaging – Every part is hand inspected for quality before it is packaged + Product Details Size – 14" x 20" or 20" x 14" is the size for the duct opening measurement only