25"W X 22"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 26.75"W X 23.75"H] w25h25 Mounted with a frame and CL 34 12B 35 Product Details Size 6 Extruded Aluminum Ceiling

Mounted with a frame and bayonet joint

+ Product Details Size - 20"w X 18"h is the size for the duct opening measurement only

4" X 12" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

actual front end outer dimensions are approximately 32 5/8" width X 10 5/8" height -

Tool-Free Access for Easy Filter Changes - Features a user-friendly plastic latch that opens effortlessly without a screwdriver

25"W X 22"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 26.75"W X 23.75"H] w25h25 Mounted with a frame and CL 34 12B 35 Product Details Size 6 Extruded Aluminum Ceiling Mounted with a frame and bayonet joint + Product Details Size 20"w X 18"h is the size for the duct opening measurement only