O.K., I've done these before but I always have to go back and forth to a hardware store, multiple times. Here's what I have, and the questions.
Last replacement I used a flex line from the faucet to my supply lines. The supply lines are 1/2" cpvc and the flex lines stated on them 1/2" Iron pipe theread and 1/2" faucet thread. I'm going to replace these, also, but I couldn't find the exact same ones. All that I saw was 1/2" FIP on both ends and I don't know what that means. Is the cpvc fitting the same as the faucet? If not, why do we have so many different thread standards? It's a pain to match things up. What is the thread standard for the cpvc and for the faucet input?