I am thrilled!!!!The product that I found at your online store was exactly what I had been looking for and had come to believe might not exist. I needed cast iron floor heating registers. I needed cast iron so if someone's chair landed on it, it wouldn't collapse, like the brass ones that I had been using. I built my house and had purchased most of my registers from Reggio Registers. They are nice people and have product similar to yours but for some reason they don't make a register this size with the vent attached. The vent attachment really helps to anchor the register and control the air flow. They have a contraption that you wrap some sort of insulation around and drop into the duct. I'm a happy customer. The shipment arrived quickly and the product is great. Thank you.