I have a faucet a tall one for a vessel sink. The hot and cold hoses that come with it is threaded into the base of the faucet that is then screwed into a tall tube to elevate the faucet. The ends that screws into the faucet is a very skinny threaded connection, the other side is a standard female 3/8" connection.

The hose I have now is too short. It bearly makes it to the valve and thus put the hose under stress.

I couldn't find such hoses in the home centers. Would plumbing supply stores have them? What is it called?

VALVE CONNECTION - 3/8" compression


FAUCET END - some funky connection

I'd use an extension on the 3/8" end. You can get a brass adapter thats 3/8" male for the supply line, and 3/8" female for the valve. Will add about 1 1/2".

I wish I could however the hoses have been badly damaged. The valves are behind a bath vanity with a back. So one hose went into the back of a drawer, which have been bumping against the hose for years to have kind of flattened it. Then the hose twisted into a hole in a divider wall and up the faucet. The steel braids are messed up too, probably from pulling them hard across the small hole of the cabinet wall, so now you have 1/4" tiny filaments sticking out along the hose and it feels like grabbing a porcupine.

I think many European faucet brands use this type of connection in faucets no?

Just went to a plumbing supply store. No luck, they said its a metric connection on the skinny end looks like a 1/8" but not really.

sum, they are out there.
do an internet search.
[slowfan.en.alibaba.com]

quote; I think many European faucet brands use this type of connection in faucets no?

Yes, and so do many American companies also, but the common element to ALL of them is that they are proprietary connections and are NOT interchangeable. You have to contact THAT manufacturer for a replacement hose.

If it were ANY kind of "pipe thread" it would not have the "O" ring seal. If you were in Phoenix last week, I would say that you brought your hose into the supply house while I was there and I, and another plumber, both told you that you were out of luck unless you can identify the faucet make and model.

I don't see any markings on the faucet that suggests the brand or make.

Often the only identification is a tag on the hot water supply pipe.