ST07UC, Sea Tech Union Connectr 3/4 Copper Tube, 81902916

Whether your tubing is PEX, copper, or CPVC, AquaLock has you covered with a stainless steel gripper ring that is resistant to corrosion and interlocks with multiple materials without any tools.
The most flexibility for ease of installation:

No tools requiredâ₏”connect and disconnect without tools for easy and flexible installation
Locking clipâ₏”for extra connection security.
NO flow restrictionâ₏”no pipe stiffeners for copper and CPVC pipes allows for full flow without additional head losses.
Rotate under pressureâ₏”for™ Plastic fittings.
Zero-leak patented O-ring guide for Plastic Seriesâ₏”protects the O-ring from damage during connection, helps align the tubing with the O-ring every time, and prevents the O-ring from becoming dislodged.