We're going to take a look at the JJR Products 2-inch by 10-inch plastic undampered RV floor register in the tan color. Now, this is an undampered floor register. It'll replace a worn or damaged register in your RV. This one is undampered, so that means there's no adjustable vent in it for controlling the airflow.This is a heavy duty plastic construction. It'll hold up to 200 pounds per square… see more >