NIBCO Sweat Fitting Union: 2 in CTS x 2 in CTS, Cup x FTG, Bronze (MPN 733-LF 2)
SKU 3G-OTH-485609
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Frequently Asked Questions
What is a NIBCO sweat fitting union used for?
A NIBCO sweat fitting union connects two copper pipes in plumbing and HVAC systems, allowing easy disassembly for maintenance or repair. The 2 in CTS cup x FTG bronze design joins pipe ends with soldered connections, ideal for potable water lines where low-lead compliance is required.
What are the specifications of the NIBCO 733-LF 2 union?
The NIBCO 733-LF 2 is a 2 in CTS x 2 in CTS sweat fitting union with cup x FTG ends, made from low-lead cast bronze. It is designed for soldered installation on copper tube systems, meeting low-lead content standards for safe potable water applications.
Where to buy NIBCO sweat fitting unions worldwide?
3G Electric supplies NIBCO sweat fitting unions like the 733-LF 2 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site, ensuring you get the correct low-lead bronze fitting for your plumbing or HVAC project.
How to install a NIBCO sweat fitting union?
To install a NIBCO sweat fitting 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 disturbance. Ensure proper support and alignment before soldering to avoid leaks.
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Common applications for NIBCONIBCO Products
3G Electric supplies NIBCO low-lead cast copper & bronze tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









