http://www.denialville.com/faucet-pullout-spray/
Is it possible to remove an aerator from a pullout spray kitchen faucet?
I'm trying to install a water filter, but the aerator does not turn. I have pictures if needed. Any advice?
They either screw on or snap on and off like a plastic can lid, once you get the face plate off you will see the aerator. try unscrewing first so you don't break it then if it doesn't unscrew you know it needs to be popped off like the can lid.