16"W X 8"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 9.875"H] 12" Diameter Secure Locking Mechanism – Features

Secure Locking Mechanism – Features a permanently attached eight-tumbler lock with a supplied key for added security

Designed for optimal airflow and lasting durability

+ Product Details Size - 28"w X 28"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 28 5/8" height

16"W X 8"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 9.875"H] 12" Diameter Secure Locking Mechanism – Features+ Product Details Size 16"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 875" width X 9. 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