Economical, an electrical conduit pipe made of versatile polyvinyl chloride is used in a variety of applications in the building and construction, health care, electronics, automobile, and other sectors, in products ranging from piping and siding, blood bags and tubing, to wire and cable insulation, windshield system components and more.

PVC conduit, is always a great choice, primarily because of the economy and it also protects from water that may seep into the wall. PVC conduits are also used in cases when electric wire may need to run below the ground or in an open environment that is exposed to air, dust, and water.

Technically, PVC pipe can be used as a conduit. In fact, grey PVC pipe is manufactured precisely for this purpose. You could use PVC made for water since it's the same thing but with a different gauge (thickness). It might not pass an electrical inspection but it would certainly work.