30"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 19.875"H] Compatible With Duct 10in High Quality Aluminum The premium

High Quality Aluminum The premium durable Aluminum will Never Rust and it will never wear through leaving the material

This grille enhances airflow efficiency

Actual Filter Size – 31 3/4"w x 13 3/4" x 1"

+ Product Details Size – 8"w X 30"h is the size for the duct opening measurement only

The total outer size of this grille is the listed size

30"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 19.875"H] Compatible With Duct 10in High Quality Aluminum The premium+ Product Details Size 30"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 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