24"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 21.75"H] w30h30 strong aluminum construction with smooth 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

strong aluminum construction with smooth finished edges for easy and safe use

High Quality – Polished pre-finish gloss varnish ready to install - can also be sanded and re-finished according to application needs

+ Product Details Size - 25"w X 14"h is the size for the duct opening measurement only

75" width X 33

With these options

24"W X 20"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 25.75"W X 21.75"H] w30h30 strong aluminum construction with smooth 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP strong aluminum construction with smooth finished edges for easy and safe use High Quality – Polished pre finish gloss varnish ready to install can also be sanded and re finished according to application needs