NIBCO Sweat Fitting Coupling: 1 in CTS x 3/4 in CTS, Cup x FTG, Wrot Copper (MPN 600R 1X3/4)
SKU 3G-OTH-472190
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Frequently Asked Questions
What is a NIBCO 600R 1X3/4 wrot copper coupling used for?
This NIBCO sweat fitting coupling joins 1-inch CTS copper tube to 3/4-inch CTS copper tube in plumbing and HVAC systems. The cup x FTG design allows one side to solder over the pipe while the other side connects to a fitting, providing a reliable transition between different tube sizes.
What are the specifications of the NIBCO 600R 1X3/4 coupling?
The NIBCO 600R 1X3/4 is a wrot copper sweat fitting coupling with a cup x FTG configuration. It connects 1-inch CTS to 3/4-inch CTS copper tubing. The manufacturer part number is 600R 1X3/4, and it is designed for soldered joints in potable water and hydronic heating systems.
Where to buy NIBCO 600R 1X3/4 coupling worldwide?
3G Electric supplies the NIBCO 600R 1X3/4 wrot copper coupling to customers 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 this and other NIBCO fittings.
How to install a NIBCO sweat coupling 600R 1X3/4?
Clean the copper tube ends and fitting cup with emery cloth. Apply flux to both surfaces, then slide the coupling onto the 1-inch tube and the 3/4-inch tube. Heat the fitting evenly with a torch until solder melts into the joint. Allow to cool naturally before pressurizing the system.
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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.









