RV and Home Brown Stamped Steel Floor Diffuser/Register with Damper 12" X 6" (Duct Opening Size) Outside Dimension 13.25"x 7.25" The chip and scratch-resistant finish

The chip and scratch-resistant finish not only ensures excellent functionality but also adds charming visual appeal to your space

If the hole is 20" wide by 14" tall

Heavy duty stamped steel face for long lasting use

One Way Air Flow deflection

and long-term durability

RV and Home Brown Stamped Steel Floor Diffuser/Register with Damper 12" X 6" (Duct Opening Size) Outside Dimension 13.25"x 7.25" The chip and scratch-resistant finishFirst thing to know about size selection: take the vent cover off the wall or ceiling. Measure the duct opening where the vent can fit in. Use the measurement to determine right size to buy. This product has listed size 12w X 6h is for duct opening measurement only, actual outsize overall dimensions is 13. 25 wide by 7. 25 high. If your duct opening size is 12 x 6, this is the right size and will fit in well. If you measure outside or surface size,