Uponor
ProPEX EP 1/2" Coupling
- SKU:
- Q4775050
- Availability:
- Ships within 10 business days
- Weight:
- 0.04 LBS
Description
ProPEX EP 1/2" Coupling
Uponor ProPEX EP 1/2" Coupling is an engineered polymer fitting designed to join two 1/2" PEX-a tubes in potable water, hydronic heating, cooling, and fire-safety piping systems.
Each end of the coupling uses the ProPEX expansion connection system for compatibility with AquaPEX and Wirsbo hePEX PEX-a tubing. Its compact, lightweight construction makes it practical for installations in tight or enclosed spaces while providing a secure, permanent, solvent-free connection.
Product Highlights
- 1/2" x 1/2" ProPEX coupling
- Engineered Polymer construction
- 20% glass-reinforced polysulfone
- ProPEX expansion connections on both ends
- ASTM F1960 compliant connection system
- Compatible with AquaPEX and Wirsbo hePEX PEX-a tubing
- Suitable for potable water applications
- Suitable for hydronic heating and cooling systems
- Suitable for domestic water distribution
- Suitable for fire-safety plumbing systems
- Compact and lightweight design
- Solvent-free connection
Technical Specifications
| Manufacturer | Uponor |
|---|---|
| Product Line | ProPEX |
| Fitting Type | Coupling |
| Connection Size | 1/2" x 1/2" |
| Connection Type | ProPEX Expansion |
| Connection Standard | ASTM F1960 |
| Material | Engineered Polymer |
| Polymer Construction | 20% Glass-Reinforced Polysulfone |
| Pressure Rating | Up to 150 psi |
| Temperature Rating | Up to 210°F |
| Tubing Compatibility | AquaPEX and Wirsbo hePEX PEX-a Tubing |
| Installation | Requires ProPEX Expansion Tool and Expansion Rings |
| Applications | Potable Water, Domestic Water Distribution, Hydronic Heating/Cooling and Fire-Safety Systems |
| Certifications | ASTM F877, ASTM F1960, NSF/ANSI 14 and NSF/ANSI 61 |
| Overall Length | Approximately 1.6" |
| Warranty | 25-Year Limited Manufacturer Warranty |
ProPEX Expansion Connection
Both ends of the coupling use the ProPEX expansion connection system. Installation requires the appropriate ProPEX expansion tool and expansion rings for a secure connection to compatible PEX-a tubing.
Engineered Polymer Construction
The coupling is manufactured from 20% glass-reinforced polysulfone engineered polymer, providing a lightweight and corrosion-resistant fitting for plumbing and hydronic applications.
AquaPEX & hePEX Compatibility
The fitting is compatible with Uponor AquaPEX and Wirsbo hePEX PEX-a tubing, making it suitable for a range of potable water and closed-loop hydronic installations.
Compact Installation
The compact, lightweight design is well suited for installations where available space is limited, including concealed and enclosed plumbing locations.
Plumbing & Hydronic Applications
The ProPEX EP coupling is suitable for potable water distribution, domestic hot and cold water systems, hydronic heating and cooling, radiant systems, and applicable fire-safety plumbing systems.

Review the Uponor Product Catalog for additional ProPEX fitting information, or contact the GetPipe.com team for help with tubing compatibility, fitting selection, and installation requirements.
Frequently Asked Questions
What size tubing does this coupling connect?
This coupling is designed to join two 1/2" PEX-a tubes.
What type of connection does the coupling use?
Both ends use the ProPEX expansion connection system in accordance with ASTM F1960.
What material is the coupling made from?
The fitting is made from engineered polymer consisting of 20% glass-reinforced polysulfone.
What tubing is compatible with this coupling?
The supplied product information identifies Uponor AquaPEX and Wirsbo hePEX PEX-a tubing as compatible.
What is the pressure rating?
The supplied product information lists a pressure rating of up to 150 psi.
What is the temperature rating?
The supplied product information lists a temperature rating of up to 210°F.
What tools are required for installation?
Installation requires the appropriate ProPEX expansion tool and expansion rings.
What applications can this coupling be used for?
It is suitable for potable water, domestic distribution, hydronic heating and cooling, radiant systems, and applicable fire-safety plumbing systems.
What certifications are listed?
The supplied product information lists ASTM F877, ASTM F1960, NSF/ANSI 14, and NSF/ANSI 61.
What is the approximate overall length?
The supplied product information lists an overall length of approximately 1.6 inches.
Important Ordering Notes
This listing is for a 1/2" x 1/2" ProPEX EP Coupling. Verify tubing size, ProPEX system compatibility, pressure and temperature requirements, and installation tooling before ordering.