25"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 26.75"W X 17.75"H] Height_40in actual front end outer dimensions 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

actual front end outer dimensions are approximately 24 5/8" width X 27 5/8" height

Horizontal performance assures confident use of cooling temperature differential of 30 degrees Fahrenheit and greater

875" width X 19

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 10" duct openings

padding: 0

25"W X 16"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 26.75"W X 17.75"H] Height_40in actual front end outer dimensions 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP actual front end outer dimensions are approximately 24 5 8" width X 27 5 8" height Horizontal performance assures confident use of cooling temperature differential of 30 degrees Fahrenheit and greater