14"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 15.75"W X 13.75"H] Aluminum The design eliminates noise and CRFG2028 Width_14in 4 X 12 Is

The design eliminates noise and prevents louvers from vibrating

Design – Fixed hinged for easy filter change & cleaning - uses a 1" thick filter

/* Adding space between bullet points */ } li { margin-bottom: 15px

+ Product Details Size – 12"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 42 5/8" height -

14"W X 12"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 15.75"W X 13.75"H] Aluminum The design eliminates noise and CRFG2028 Width_14in 4 X 12 Is The design eliminates noise and prevents louvers from vibrating Design – Fixed hinged for easy filter change & cleaning uses a 1" thick filter