NIBCO Sweat Fitting Adapter: 1 in CTS x 1 1/4 in Pipe, Cup x MNPT, Wrot Copper (MPN 604R 1x11/4)
SKU 3G-OTH-472577
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Frequently Asked Questions
What is NIBCO 604R 1x11/4 wrot copper adapter used for?
This NIBCO sweat fitting adapter connects 1-inch CTS copper tube to 1 1/4-inch male NPT threaded pipe. It is used in plumbing, HVAC, and industrial piping systems where a transition from copper tubing to threaded connections is required.
What are the specifications of NIBCO 604R 1x11/4 adapter?
The NIBCO 604R 1x11/4 is a wrot copper fitting with a cup x MNPT connection. It adapts 1-inch CTS copper tube to 1 1/4-inch male NPT pipe. The manufacturer part number is 604R 1x11/4, and it is designed for sweat/solder installation.
Where to buy NIBCO 604R 1x11/4 adapter worldwide?
3G Electric supplies NIBCO 604R 1x11/4 wrot copper adapters worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this fitting.
How to install NIBCO 604R 1x11/4 sweat adapter?
Clean the copper tube and fitting cup, apply flux, assemble, and heat with a torch until solder flows into the joint. For the threaded end, use PTFE tape or pipe dope on the male NPT threads. Follow standard plumbing practices for wrot copper fittings.
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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.









