Want to find a cover bezel from dual handle to single handle in antique bronze. The cover plate is not big enough to cover the holes from the old faucet

You need to cover an 8" spread. Many kitchen faucet kits come with a bezel plate. Look for one at HD or Lowes and find the part number. Google "8" center set cover plate" Buy.com has an oiled bronze one for <$10

Glacier Bay is a store brand name made only for HD so look there is youhope to get the finish to match. If they don't stock it them ask them to look over their special order catalogue for parts. No company named Glacier Bay, sorry