The Uponor Q4773838 3/8" ProPEX EP Coupling is a high-performance fitting designed for secure, long-lasting PEX-to-PEX connections in residential and commercial plumbing systems. Constructed from durable engineered polymer (EP), it offers excellent corrosion resistance and reliability over time.Key Specifications:
- Size: 3/8" x 3/8"
- Material: Engineered Polymer (EP)
- Connection Type: ProPEX® – requires ProPEX expansion tool and rings
- Tubing Compatibility: hePEX plus, PEX-a
- Application: Suitable for hot and cold potable water systems, radiant heating, and cooling applications
- Certifications: Meets ASTM F1960, ASTM F877, and CAN/CSA B137.5 standards
- Maximum Operating Temperature: 210°F
- Maximum Temperature (No Pressure): 320°F
- Warranty: 25-year limited