Sea Tech Union Elbow 3/4 Copper Tube

The Sea Tech 3/4-inch Union Elbow (ST07UE) from Watts Water Technologies routes 3/4-inch CTS tubing through a clean 90-degree turn without tools, solder, or glue. Forcing larger tubing around a corner invites kinks and stressed joints that restrict flow and risk failure; this push-to-connect elbow eliminates the problem by giving the line a smooth, secure directional change wherever your layout requires one.

This elbow carries forward the dependable Sea Tech AquaLock design. A corrosion-resistant stainless steel gripper ring interlocks with multiple tubing materials, so the same fitting works across PEX, copper, and CPVC without any tools. The zero-leak O-ring guide shields the O-ring during insertion, aligns the tubing every time, and prevents the seal from being dislodged, while the locking clip adds an extra measure of connection security on these higher-flow lines that carry more water.

• 90-degree union elbow for 3/4-inch CTS tubing
• Tool-free push-to-connect installation
• Stainless steel gripper ring grips PEX, copper, and CPVC
• Locking clip and patented zero-leak O-ring guide for sealed joints
• Turns the line cleanly without kinks or strain on the tubing
• Maintains full flow with no stiffeners needed on copper and CPVC
• Single elbow serves multiple tubing materials, simplifying inventory

On 3/4-inch lines, making directional changes without restricting the line is especially important, because these runs carry the main supply to the home's softeners, filters, water heaters, and fixtures. A tight, kinked bend in tubing this size can noticeably reduce pressure downstream, whereas a proper elbow keeps the bore open and the flow strong.

Because no flow-restricting stiffeners are required for copper and CPVC, the elbow preserves full flow and avoids head loss even where the larger line changes direction. For installers navigating supply lines around framing, valves, and tanks in tight mechanical rooms, this Sea Tech union elbow delivers fast, reliable, and reworkable directional changes that keep the job moving and the water flowing freely. Trusted by professionals for clean, full-flow turns on larger lines, this 3/4-inch union elbow is a dependable choice that helps keep both the installation and the water pressure exactly where they should be. Keep a few in your kit and you will always have a clean, tool-free way to turn a 3/4-inch line wherever the installation requires it.