I bought a set of keys for it, but it won't budge.
They are plastic so just break the interior ring carefully without messing up the threads inside the faucet and buy a new one. They are dirt cheap on Amazon. Find your faucet model to get the legit part number for the expensive true replacement and then search that part number on amazon for off brand replacements. Did this for all my Moens, they want $11+ per aerator for true one, i got a 5 pack for $8 and even increased my gpm from 1.2 to 1.5 to boot.Sazerac said:
I tried pliers and now I don't have an aerator at all