To remove a tub spout adapter from a spout, follow these steps:
• Use an adjustable wrench to loosen the set screw located at the base of the adapter.
• Once it has been sufficiently loosened, twist and pull off the adapter.
• If necessary, use WD40 or other lubricant to get better grip on the parts being removed.
Be sure to take extra care when handling delicate parts of your plumbing system.