The Uponor Q4351000 is a 1" ProPEX EP Plug designed to securely cap and seal the ends of PEX piping in a variety of plumbing and hydronic applications. Constructed from durable engineered polymer (EP), this plug resists corrosion, chemical exposure, and scaling, ensuring long-lasting performance in demanding environments.This fitting is intended for use with Uponor's PEX-a (ASTM F1960) systems and requires a ProPEX expansion tool for installation, eliminating the need for soldering, gluing, or crimping.Product Specifications:
- Connection Size: 1 inch
- Connection Type: ProPEX (F1960 expansion)
- Material: EP (Engineered Polymer)
- Application: PEX piping systems – potable water or hydronic heating
- Maximum Pressure: 100 psi
- Maximum Temperature: 200°F
- Standards Compliance: ASTM F1960, lead-free


