Had a garage built (NorCal) about 12 years ago. Had them rough in for a bathroom upstairs in a game room. Finally getting around to building it. Broke into wall to check everything out.
Found the cold water supply which is 3/4” copper...and this red flex line stubbed over to the hot water heater closet.
The photos are of the rough in area...and the same red flex line in the wall stubbed for connection to new water heater.
Trying to figure out if there are different proprietary makes of “pex” line...or just buy the fittings and crimped and hook it up...
Thanks for any help or comments/suggestions...
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