28"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 29.875"W X 19.875"H] Blade + Product Details Size –

+ Product Details Size – 20" x 24" or 24" x 20" is the size for the duct opening measurement only

of up to 300m3/h

+ Product Details Size - 18"w X 8"h X 2"d (for duct opening measurement only)

1/4" - 6518 PSI

rated at R3

28"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 29.875"W X 19.875"H] Blade + Product Details Size –+ Product Details Size 28"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 875" width X 19. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was