16"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 17.75"W X 21.75"H] Powder-Coated + Why Hvac Premium HVAC Height_16in RG1612AL Product Details Size 14

+ Why Hvac Premium HVAC Premium has been providing superior quality service for many years

+ Product Details Size - 10"w X 16"h is the size for the duct opening measurement only

+ Product Details Size - 36"w X 14"h is the size for the duct opening measurement only

This grille is ideal for both sidewall and ceiling installations

this floor register seamlessly combines durability and design

16"W X 20"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 17.75"W X 21.75"H] Powder Coated + Why Hvac Premium HVAC Height_16in RG1612AL Product Details Size 14 + Why Hvac Premium HVAC Premium has been providing superior quality service for many years + Product Details Size 10"w X 16"h is the size for the duct opening measurement only