Compression Union - Products
A compression union joins two lengths of tubing without soldering, using a nut and ferrule at each end to seal, perfect for connecting copper or other tubing in tight spots where a torch cannot be used. Moonshine Bath stocks compression unions in common sizes for supply lines.
The no-flame way to splice tubing. Each union ships free across the USA, Canada and Mexico, leaves the warehouse within 24 hours on weekday orders before 2 PM EST, and is backed by our price match plus 10 percent beat guarantee.
Frequently Asked Questions
When should I use a compression union instead of soldering?
Use a compression union in confined spaces, near flammable materials, or for quick repairs where you cannot safely use a torch. It seals by tightening nuts onto ferrules, with no heat required.
Are compression unions reliable long-term?
Yes, when properly tightened they hold reliably. For concealed locations some codes prefer soldered or brazed joints, so check local code before burying a compression fitting in a wall.