NIBCO Sweat Fitting Adapter: 1/2 in CTS x 1/4 in Pipe, Cup x FNPT
SKU 3G-OTH-472255
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is a NIBCO sweat fitting adapter used for?
A NIBCO sweat fitting adapter connects copper tubing to threaded pipe in plumbing and HVAC systems. This wrot copper cup x FNPT adapter joins 1/2 in CTS copper tube to a 1/4 in female threaded pipe, providing a reliable transition for water or gas lines.
What are the specifications of the NIBCO U603-1/2x1/4 adapter?
The NIBCO U603-1/2x1/4 is a wrot copper sweat fitting adapter with a cup end for 1/2 in CTS copper tube and a 1/4 in FNPT threaded end. It is made from wrot copper for corrosion resistance and is suitable for potable water and hydronic heating applications.
Where to buy NIBCO sweat fitting adapters worldwide?
3G Electric supplies NIBCO sweat fitting adapters like the U603-1/2x1/4 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this wrot copper fitting.
How to install a NIBCO sweat fitting adapter?
To install a NIBCO sweat fitting adapter, clean and flux the copper tube end and the cup interior. Heat the cup evenly with a torch until solder melts into the joint, then allow to cool. For the FNPT end, use thread sealant and tighten to standard torque. Always follow local plumbing codes.
Used in
Common applications for NIBCONIBCO Products
3G Electric supplies NIBCO wrot copper tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









