Flare Union - Products
A flare union joins two flared tubing ends with flare nuts and a central body, sealing metal-to-metal without solder, a dependable connection for gas, HVAC and high-pressure tubing. Moonshine Bath stocks flare unions in common SAE sizes.
Flare unions make a strong, serviceable tubing splice. 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
What is the difference between a flare union and a compression union?
Both join tubing without solder. A flare union seals via a flared cone tube end pressed to a matching seat, stronger and preferred for gas. A compression union seals with a ferrule and is common on water lines.
Do I need a special tool for flare fittings?
Yes. You need a flaring tool to form the cone-shaped flare on the tubing end before assembling the union. The flare must be clean and even to seal properly.