NIBCO Sweat Fitting Union: 1/4 in CTS x 1/4 in Pipe, Cup x FNPT, Cast Copper (MPN 7333-LF 1/4)
SKU 3G-OTH-485618
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Frequently Asked Questions
What is NIBCO sweat fitting union 7333-LF 1/4 used for?
This NIBCO sweat fitting union connects 1/4 in CTS copper tube to 1/4 in FNPT pipe in low-lead cast copper. It is used in potable water, HVAC, and industrial plumbing systems where a reliable, leak-free joint is required.
What are the specifications of NIBCO 7333-LF 1/4?
The NIBCO 7333-LF 1/4 is a low-lead cast copper sweat fitting union with a cup x FNPT connection. It fits 1/4 in CTS tube on the cup end and 1/4 in pipe on the FNPT end. The manufacturer part number is 7333-LF 1/4.
Where to buy NIBCO sweat fitting union 7333-LF 1/4 worldwide?
3G Electric supplies and delivers the NIBCO 7333-LF 1/4 sweat fitting union worldwide. We handle full logistics and customs clearance to ensure your order arrives at your facility, wherever it is located.
How to install a NIBCO sweat fitting union?
To install a NIBCO sweat fitting union, clean and flux the tube and fitting cup, then heat evenly and apply solder until it flows into the joint. For the FNPT end, use thread sealant and tighten to standard torque. Always follow local plumbing codes.
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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.









