Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is it possible to use a SharkBite male adapter on a copper stub out for a bathtub faucet?

I am not well versed in soldering plumbing fittings and I would rather not have to buy the gas, a torch tip, flux, and solder just for one connection. Also, the copper stub out is only about 10" long and connects to Pex in the wall so keeping that amount of heat off the copper would be a good thing, right?

share|improve this question
up vote 4 down vote accepted

If you are trying to install a screw-on tub spout, it might not tighten up, because the SharkBite adapter will spin. You would need to use a wrench to tighten the SharkBite side, and that would be hard to do inside the spout.

Some spout basics:

Diverter vs tub only

  • Diverter spout models have a pull up knob that blocks the water flow, causing it to reverse and come out the shower head.
  • Tub only are just simple spouts, filling the tub.

Spout connection types There are three main types of how a spout connects to the pipe

  • 1 Front threaded. The pipe traverses the length of the spout internally, ending in a threaded fitting (usually 1/2" IPS). A front threaded spout usually does not integrate a diverter.

  • 2 Rear threaded. The pipe connection is made at the rear of the spout. These spouts can be either diverters or tub only.

  • 3 Slip on. These spouts will work with just a clean, open copper pipe, as it has a set screw adapter to clamp the pipe.

Slip on tub spout

Soldering to the nipple with the PEX attached is not optimum, but can be managed if you have room to tightly wrap a water saturated cotton rag around the copper and extended over the PEX portion. The water won't allow the PEX connection to go above 212 until it dries out. You will need several inches of bare copper pipe on the end to solder to. (Just TRY to a solder a pipe with any water in it.) Practice your soldering ahead of time and you will become confident of solid, leak free joints.

This thread has some good advice on soldering

This page describes tub spouts.

share|improve this answer
summarizing some of the information here from the linked page, would make this an awesomer answer. – Tester101 Mar 20 '13 at 10:59
I decided ultimately to purchase a different tub spout than the one that came with the Moen shower/tub kit I purchased. The cost of purchasing soldering materials is the same as purchasing a new Moen tub spout with a slip-on connection. Thanks for the tip. – Odee Odum Mar 20 '13 at 15:06

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.