NIBCO Sweat Fitting Union: 1 in CTS x 1 in CTS, Cup x FTG, Cast Copper (MPN C733 1)
SKU 3G-OTH-469257
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is NIBCO sweat fitting union used for?
This NIBCO sweat fitting union connects two copper pipes of the same size in a plumbing or HVAC system, allowing easy disassembly for maintenance. It is commonly used in potable water, heating, and cooling applications where a reliable, leak-free joint is required.
What are the specifications of NIBCO C733 1 union?
The NIBCO C733 1 is a cast copper sweat fitting union with 1 in CTS cup x 1 in CTS cup connections. It features a cup x FTG (fitting) design for soldered installation. The manufacturer part number is C733 1, and it is made from durable cast copper.
Where to buy NIBCO C733 1 union worldwide?
3G Electric supplies the NIBCO C733 1 cast copper union 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 fitting.
How to install a NIBCO sweat fitting union?
To install this NIBCO union, clean and flux the pipe ends and fitting cups, then heat evenly with a torch until solder melts into the joint. Allow to cool without disturbing. Ensure the union nut is tightened after soldering for a secure, leak-free connection.
Used in
Common applications for NIBCONIBCO Products
3G Electric supplies NIBCO cast copper & bronze tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









