Decor Grates SPH212-RB 2-Inch by 12-Inch Scroll Floor Register, Oil Rubbed Bronze Scroll Design- by Decor Grates Damper Box Included Air Filter not included Inside Dimensions: 2 1/4" x 12" Outside Dimensions: 3 3/4" x 13 1/2" Adjustable and durable plastic airflow control sits below surface of floor