help with 3/8 shut off valve please

[allserene]

ok the water comes in under the sink in a 1/2 copper pipe, and terminates in 3/8 fitting to accept a 3/8 pex line up to the 1/2 inch faucet...

I want replace the plex line line with a stainless 12 inch stainless steel hose, and insert a straight shut off valve between the inlet and the flex hose.

I don't want to disturb the existing 3/8 outlet to which the existing plex line is attached

ok question: what kind of shut off valve do I need that has an INLET that will attach to the existing 3/8 outlet ?

Or do I need some kind of adapter ? Thanks ..Alan...

 

[Geofd]

1/2" ,sweat by 3/8 compression angle valve
Brass or chrome which ever your prefer

 

[Jeff Handy]

Turn the water off, drain the plumbing in the house, open faucets to help drain.

Cut that fitting off nice and straight with a hack saw, no burrs on the cut edge.

Install the angled compression shutoff valve as Geofd described.

 

[Jeff Handy]

1/2 in. Compression Inlet x 3/8 in. Compression Outlet 1/4-Turn Angle Valve

https://www.homedepot.com/p/202047059

 

[House Doc]

Turn the water off, drain the plumbing in the house, open faucets to help drain.

Cut that fitting off nice and straight with a hack saw, no burrs on the cut edge.

Install the angled compression shutoff valve as Geofd described.

You're getting much better Jeff. I'm proud of you.

 

[Jeff Handy]