"GrillWorks, Trimline-FwF-4x14, Registers, Bamboo - LIGHT Vertical Grain, Trimline, Vent Covers, Slatted Trimline Wood Floor Register - Flush Model with Frame Uncompromising in design and quality, Grill Works products are the finest wood vents made in the U.S.A. Slim, trim, flush styling with the cleanest look possible. Sets flat on the subfloor. The frame is set permanently while the vent is removable to permit cleaning of the duct throat. Delicate looking, but tough. Adjustable box damper also available.