12"x 6" (Duct Opening Size) 2-Way Stamped Face Steel Ceiling/sidewall Air Supply Register - Vent Cover - Actual Outside Dimension 13.75" X 7.75" • Wide Range of Applications

• Wide Range of Applications – Suitable for gas water heaters

The Listed size 14"x 14"is for inside duct opening measurement

The Listed size 12"x 8" is for inside duct opening measurement (the duct hole)

Unlike other grade of "stainless" steel

12"x 6" (Duct Opening Size) 2-Way Stamped Face Steel Ceiling/sidewall Air Supply Register - Vent Cover - Actual Outside Dimension 13.75" X 7.75" • Wide Range of ApplicationsFirst 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. 75 wide by 7. 75 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,