Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Quick sanity check

delta T
delta T Member Posts: 884
What is the proper length of threads for 3" NPT? 1 1/2" yes? Had someone just tell me it was 2 1/4".....don't have my charts with me but I'm pretty sure its 1 1/2".

Sanity check please!