The DeatschWerks weld-on 3/8 inch female NPT fitting is an aluminum weld-in adapter that provides a permanent 3/8" NPT threaded port where you need it. It installs by welding to a fabricated surface to create a sealed threaded access point for compatible NPT fittings. Its compact profile makes it useful for adding a reliable, welded female NPT connection during custom plumbing or tank fabrication.
DeatschWerks 3/8in Female NPT Weld On Fitting Aluminum