which fittings for water supply connector

[beachnik]

I looked, didn't find this in the forum.

This is about fittings - not about hose material, not about hose length.

So I'm going to remove all the 'multi-turn angle stops' in several apartments. I'll be installing BrassCraft 1/4 turn ball angle stops - 1/2 Comp by 1/2 Comp. I'll also replace all the flex hoses (aka Water Supply Connectors).

So here's what's confusing me:
- I can buy hoses that are 1/2" FIP x 1/2" FIP
- I can buy hoses that are 1/2" Comp x 1/2" FIP

What is the correct thing for the fitting that connects to the angle stop? For the fitting connects to the faucet?

(sure, I could buy the same thing that's already installed in the apartments, but there's no telling if the thing previously installed was the best choice).

Thanks

 

[Matt30]

Unless you have an odd ball set up, you likely are looking for 1/2" compression x 3/8" compression angle stops for your fixtures. Is the piping copper or pex?

 

[frodo]

3/8'' compression x 1/2'' fip for the lav, typical

3/8'' compression x 7/8'' fip for the toilet, typical

if you dont know your sizes, take one with you to the store

 

[beachnik]

Matt30 & frodo, thanks to both of you for your responses.

Here's what prompted me to ask the original question...

- - - -
I've got 1/2" copper stubbed out. In every case, the existing angle stops (the ones I will remove and replace) are:
- inlet side - 1/2" compression fitting
- outlet side - 1/2" compression fitting (compression ring and nut removed / discarded when they attached flex hose)

Yes, I've noticed that folks frequently use 1/2" x 3/8" angle stops for toilets. Apparently, they also do that for lavs. Anyway, I assumed that 1/2" x 1/2" angle ball stops would be fine for both lavs and toilets and have already ordered a bunch (local retailers don't stock them).

The thing that threw me was that when I looked at the currently installed flex lines (remember, currently installed has all 1/2" comp x 1/2" comp angle stops for faucets and toilets) I saw all 1/2" FIP x 1/2" FIP hoses.

I knew that I had once seen toilet flex hoses - compression fitting going to angle stop. And assuming that would be the correct thing to do for toilets, this made me think that it must also be correct to have a compression fitting going to the angle stops for the lavs (that in fact is what frodo recommends in his post).

- - - -

So, you've answer my question.

Thanks