Anyone know what this is?

Sorry if this winds up being off-topic.

Never seen this before. It’s a pipe that goes through the basement foundation wall and down through the slab floor. There’s also a leg coming out the side but it’s capped. The whole thing minus a section of braided steel has been wrapped with insulation and tape. Looks old.

There was a foot of snow on the ground outside so I couldn’t see what was going on out there.

Any ideas? Thanks in advance.

Any outside buildings? could be a old water supply

Nope, not even a shed.