Why do I have 3 water supply lines?

[SurferJoe]

Doe anyone know why the builder would have added 3 water supply lines under my kitchen sink?

Thanks,
Joe

 

[johnjh2o]

The 1/2" line on the cold is looped under the slab to another fixture.

 

[SurferJoe]

That makes sense, Thanks so much!!

 

[frodo]

maybe the ice maker or a outside hose bib