Uponor
ProPEX 1/2" EP Plug
- SKU:
- Q4350500
- Availability:
- Ships within 10 business days
- Weight:
- 0.10 LBS
Description
ProPEX 1/2" EP Plug
Uponor ProPEX 1/2" EP Plug is an engineered polymer fitting designed to securely terminate the end of compatible PEX-a tubing.
The plug is suitable for hot and cold domestic potable water systems, residential fire-sprinkler systems, hydronic heating and cooling, radiant heating, and other compatible PEX-a applications. Its polysulfone construction and ProPEX cold-expansion connection system provide a clean, permanent or temporary termination without soldering or adhesives.
Product Highlights
- 1/2" ProPEX EP plug
- Engineered polymer construction
- Polysulfone fitting body
- Designed to terminate compatible PEX-a tubing
- ProPEX cold-expansion connection
- Suitable for permanent or temporary stub-out termination
- Suitable for potable water systems
- Suitable for hydronic heating and cooling
- Suitable for radiant heating applications
- Suitable for residential fire-sprinkler systems
- No soldering or adhesives required on the ProPEX connection
Technical Specifications
| Manufacturer | Uponor |
|---|---|
| Product Line | ProPEX |
| Fitting Type | EP Plug |
| Connection Size | 1/2" |
| Connection Type | ProPEX Cold Expansion |
| Material | Engineered Polymer / Polysulfone |
| Length | 0.85" |
| Plug Body Diameter | Approximately 0.87" |
| Working Pressure | Up to 150 psi |
| Maximum Temperature | Up to 210°F for standard applications |
| No-Pressure Temperature Rating | Up to 320°F per supplied product information |
| Applications | Potable Water, Radiant Heating, Hydronic Heating/Cooling, Residential Fire-Sprinkler Systems and PEX-a Stub-Out Termination |
| Standards & Certifications | ASTM F877, ASTM F1960, NSF-61, NSF-14, IPC, UPC, CAN/CSA B137.5 and IAPMO where applicable |
Secure PEX-a Termination
The ProPEX EP Plug is designed to close the end of compatible 1/2" PEX-a tubing for either permanent or temporary system termination.
ProPEX Cold Expansion
The fitting uses ProPEX cold-expansion technology, providing a mechanical connection without soldering, glue, or solvent.
Engineered Polymer Construction
Durable polysulfone construction provides a lightweight fitting suitable for potable water, hydronic, radiant, and fire-sprinkler piping applications.
Compact Design
With an overall length of approximately 0.85" and a body diameter of approximately 0.87", the plug provides a compact solution for terminating PEX-a tubing ends.
Plumbing & Hydronic Applications
The plug can be used to terminate unused or temporary PEX-a stub-outs in potable water supply, radiant heating, hydronic heating and cooling, and residential fire-sprinkler systems.

Review the Uponor Product Catalog for additional ProPEX fitting information, or contact the GetPipe.com team for help confirming tubing size, application, and installation compatibility.
Frequently Asked Questions
What size tubing does this plug fit?
This listing is for a 1/2" ProPEX EP Plug designed for compatible 1/2" PEX-a tubing.
What is the plug used for?
It is used to permanently or temporarily terminate the end of compatible PEX-a tubing.
What material is the plug made from?
The plug is made from engineered polymer / polysulfone.
What type of connection does it use?
The fitting uses the ProPEX cold-expansion connection system.
What is the working pressure?
The supplied product information lists a working pressure of up to 150 psi.
What is the maximum temperature rating?
The supplied product information lists use up to 210°F for standard applications and up to 320°F under no-pressure conditions.
What applications is this plug suitable for?
It is suitable for potable water, radiant heating, hydronic heating and cooling, residential fire-sprinkler systems, and other compatible PEX-a applications.
What standards and certifications are listed?
The supplied product information lists ASTM F877, ASTM F1960, NSF-61, NSF-14, IPC, UPC, CAN/CSA B137.5, and IAPMO where applicable.
What are the approximate dimensions?
The supplied product information lists a length of 0.85" and an approximate plug body diameter of 0.87".
Important Ordering Notes
This listing is for a 1/2" ProPEX EP Plug. Verify tubing size, ProPEX system compatibility, pressure and temperature requirements, and intended application before ordering.