The galley sink faucet handle on my 01 3800 Open has stopped working. When you remove the handle pressure is fine. Seems to be something on the backside of the handle, rubber trim, that allows you to switch back and forth on whether it’s a spray or stronger stream. Anyone familiar with a good replacement. Guessing it’s 1/2” where it connects to the flexible hosing. If anyone has replaced theirs and can advise it’s appreciated. They look like $40 on Amazon but not many have the 1/2” thread. I heard Tiara used Delta but I’m not sure. Thx in advance for any guidance.