Opera Grilles

Opera grilles are cast aluminum and provided unpainted. It is presumed the customer will paint them to their taste, although many people leave them the natural aluminum. Aluminum is a soft metal and these are best used on wall or ceiling, but floor use is fine provided the width of the duct opening is not over six inches.
In general these are not customizable although sometimes we weld together two individual pieces in order to fit a large cold air return opening.