Sea Tech Union Tee, 3/4 Copper Tube Size

Add a branch to a 3/4-inch line in moments with the Sea Tech Union Tee (ST07UT) from Watts Water Technologies. This push-to-connect tee splits a 3/4-inch CTS run into two, creating a tidy takeoff for fixtures, appliances, or water-treatment accessories without any solder, glue, or tools. It brings the speed and reliability of AquaLock connections to the larger supply lines common in whole-house systems.

The tee relies on Sea Tech's corrosion-resistant stainless steel gripper ring, which firmly grabs and holds the tubing while interlocking with PEX, copper, and CPVC, all without tools. A locking clip adds extra security at each port, and the patented zero-leak O-ring guide protects the O-ring during insertion, aligns the tubing, and keeps the seal from being knocked out of place. The result is a dependable, leak-free branch every time, even on the higher-flow lines this fitting is built to serve.

• Union tee branches a 3/4-inch CTS line into a takeoff
• Tool-free push-to-connect assembly on all three ports
• Stainless gripper ring grips PEX, copper, and CPVC
• Locking clip and zero-leak O-ring guide for secure, sealed joints
• No stiffeners needed for copper and CPVC, maintaining full flow
• Reworkable connections for flexible system layouts
• Built for the larger 3/4-inch lines in whole-house plumbing

Branching a 3/4-inch line the traditional way means cutting the pipe and making three soldered or cemented joints, with the curing time and leak risk that come along with it. A push-to-connect union tee turns that whole task into seconds of work, letting you tap a main run to feed treatment equipment or additional fixtures with no fuss.

Because copper and CPVC connections require no flow-restricting stiffeners, all three branches maintain full flow with no added head loss, keeping pressure strong where it counts on a busy supply line. That makes this tee ideal for distributing water to multiple points or tying treatment equipment into a 3/4-inch run. For installers who want fast, reliable branching that can be reconfigured just as easily, the Sea Tech 3/4-inch union tee is a smart, professional-grade choice. Whether distributing water to several points or feeding a softener or filter, this 3/4-inch tee makes branching a busy supply line fast and dependable, with the flexibility to adjust the layout later.