- Make sure this fits by entering your model number.
- All-steel construction
- Widespread air diffusion
- Easy to operate damper control
- Rolled fin for strength and safety
All-steel construction. Widespread air diffusion. Easy to operate damper control. Rolled fin for strength and safety. Measure the length and width of the opening. Subtract 1/8″ to 1/4″(depending on how square the opening is) and this is the inside dimensions. Painted metal registers have a durable powder-coat finish.