3515-10 PEX Quick Connect Union Coupling, 1/2 In., Plastic

The Watts 3515-10 is a 1/2-inch plastic union coupling designed to connect copper, CPVC, PEX, LPDE, MPDE, HDPE and polybutylene tubing in both hot and cold water applications. This push-fit connector eliminates the need for special tools, solder, clamps or tube inserts, making it ideal for new plumbing installations and repair projects. The quick-connect design allows you to disconnect and reposition tubing by pulling back the locking ring, reducing the amount of tubing required to plumb a water system.

With stainless steel gripping teeth built into the collets, this coupling creates reliable connections across multiple pipe materials without special adapters. The exclusive O-ring guide ensures zero-leak connections, and the 100 psi pressure rating supports a wide range of plumbing applications. Approved for installation behind walls and for direct underground burial, this reusable coupling meets NSF and code requirements for potable water service.

Features and Benefits

• Tool-Free Installation: Push tubing into the fitting end until it seats at the stop; no soldering, crimping or special equipment required.
• Universal Compatibility: Stainless steel gripping teeth allow connections to copper, CPVC, PEX, LPDE, MPDE, HDPE and polybutylene tubing without inserts.
• Adjustable Orientation: Tube orientation can be changed by a simple twist, reducing the amount of tubing required to plumb a water system.
• Reusable: Can be disconnected and used again in different applications.
• Code Approved: Meets NSF and certification requirements for safe potable water use and approved for behind-wall and in-ground burial installations.

Specifications

• Brand: Watts
• Model: 3515-10
• Size: 1/2 inch
• Material: Plastic with stainless steel collets
• Pressure Rating: 100 psi
• Compatible Tubing: Copper, CPVC, PEX, LPDE, MPDE, HDPE, polybutylene
• Reusable: Yes
• Approved for behind-wall and underground installation: Yes

How to Use

• Connect: Push tubing into the fitting end until it seats firmly at the internal stop.
• Disconnect: Pull back on the locking ring while releasing the pipe to safely remove tubing.
• Reposition: Twist the coupling to change tube orientation without removing or replacing the fitting.

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.