Suitability of the 421 versus the 210

Floor Register 210 and 421 are both excellent registers for floor use. The 210 however is a very durable steel register that will handle any kind of furniture weight or foot traffic. The 421 is a stamped floor register that is lighter in weight but with a full damper control, but you have to be careful that you do not place it near a table leg or chair or even an entryway. Although it is made for floor use, it is lighter and be subjectable to bending under an extreme load. The advantage of using the 421 is that its' available in both a golden sand color and white, where the 210 is not.