Flooring Grills and Vents PRBAMGR4HC - PR Bamboo Grill 4X10 Drop In Horizontal CarbonizedStandard Vent- Surface Mount GrillSelf-rimming or an Overlap insert mount ventThis style fits over any existing or new duct opening. Gently rounded lip conceals rough floor edges. Adds a finishing touch to any floor- wood- stone- tile- vinyl or carpet.-Used with any floor thickness.-Easy to install- simply drop the unit into the duct opening.-Optional metal damper allows personalized airflow regulation.See our article on Hardwood Gri