Thanks for the quick & in-depth reply Frank.
I ask because I have 20' of 1/2" PEX and want to avoid buying 10' of a different size if I can....since I'll only use a couple of feet of it.
I guess a question I still have is...is there any reason I can't use a regular 1/2" PEX -> 1/2" Female NPT to connect the water supply to the faucet?
Female Adapter 1/2" x 1/2" Female Pipe Thread
Sean (complete plumbing novice)