I got a call from my father that his kitchen faucet is getting stiff. He lives a few hours away from me and I would like to have tools and parts with me when I go to work on it. I had him take a pic. We "think" it is a Delta but not sure how old it is. Can anyone confirm by looking at it that it is a Delta? If so, can you tell by looking at it if it takes the ball and washers or if it takes the cartridge. BTW, the faucet does not leak at all but has become very stiff for him to use. Thanks in advance! I know I could get this apart and go to a box store after I see what it is, but if I can save an hour or two by preparing beforehand it will be great.