The Flushmount Pro is our flush mount beauty. Once installed, this shows no rim, just the rectangle air flow opening. Form and function can be seamlessly integrated. A virtually invisible option that blends into any surface. Must be installed at the sub-floor level, prior to flooring (or surface) installation. Use for supply air registers found on floors. Can also be used walls and ceilings that have different surface materials (like: tile or shiplap). Use with ANY surface material; hardwood, vinyl, laminate, carpet, tile, Lego, you name it. *Material must be between 1/8” and 7/8” thick. Install is best done by a Pro. Must be mounted before flooring is installed.