1. A  if your old built-in registers lack a certain je ne sais quoi, and you're not about to let that stand. 

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Promising review: "I bought these to replace the ugly, plain registers that were on my ceiling. Installed in less than 10 minutes, and they look beautiful. I ordered white grates and spray-painted them nickel to match my ceiling fan. Couldn't be happier." —AsMeow