This video demonstrates installation of a tub spout to a 1/2" copper pipe. There are several types of tub spouts. The slipfit tub spout installs easily to a copper pipe. There is an oring that seals to the copper pipe, and the spout just slides on. A set screw holds the spout in place.

But sometimes the spout is threaded with a 1/2" IPS female thread in the front of the spout. In this case, the copper has to be adapted to threaded pipe. By soldering on a 1/2" FIP copper adapter, the spout can be installed for a clean finish, flush to the wall.

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