30"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 17.875"H] 6" Diameter also called T-Bar systems

also called T-Bar systems

+ Product Details Size – 34"w X 12"h is the size for the duct opening measurement only

Built-In Locking System – Comes with a permanently attached eight-tumbler lock and a supplied key for added security

+ Product Details Size - 20"w X 28"h is the size for the duct opening measurement only

30"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 17.875"H] 6" Diameter also called T-Bar systems+ Product Details Size 30"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 875" width X 17. 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