NIBCO Sweat Fitting Adapter: 1/2 in CTS x 1/2 in Pipe, Cup x FNPT, Wrot Copper (MPN 603-1/2)
SKU 3G-OTH-472252
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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. The 1/2 in CTS cup end solders onto copper tube, while the 1/2 in FNPT end accepts male threaded pipe, enabling reliable transitions in water supply and hydronic heating lines.
What are the specifications of the NIBCO 603-1/2 sweat fitting adapter?
The NIBCO 603-1/2 is a wrot copper sweat fitting adapter with a 1/2 in CTS cup x 1/2 in FNPT connection. It is designed for soldering onto copper tube and accepts male threaded pipe. The cup x FNPT configuration suits standard plumbing and HVAC applications requiring a transition from solder to thread.
Where to buy NIBCO sweat fitting adapters worldwide?
3G Electric supplies NIBCO sweat fitting adapters worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the NIBCO 603-1/2 or other wrot copper fittings for your project.
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. Slide the cup over the tube, heat evenly with a torch until solder melts into the joint, then cool. For the FNPT end, apply thread sealant and tighten onto male pipe. Follow local plumbing codes for best results.
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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.









