The TFI Racing P404 is a brass double compression union designed to securely connect two equal-diameter 5/16” tubes using compression fittings on both ends. Its solid brass body ensures long-term durability and resistance to corrosion—perfect for automotive, pneumatic, coolant, or fuel line applications. Installation is straightforward: insert tubing into both ends and tighten the compression nuts to create a reliable, leak-free seal without the need for soldering.

Part Number: P404