3/4 inch PEX Engineered Plastic Plug

3/4 inch PEX EP Plug – Engineered Polymer Termination for Closed-End System Integrity

The 3/4 inch PEX EP Plug provides a reliable solution for terminating PEX tubing within closed-loop or capped configurations. Constructed from high-performance engineered polymer (EP), this component offers chemical resistance, dimensional stability, and long-term durability in potable and non-potable water distribution systems.

Designed for use with ASTM F1807 or ASTM F2159-compliant crimp or clamp connection methods, this plug allows contractors to seal unused branches, fixture stub-outs, or temporary system terminations efficiently while maintaining full compliance with plumbing codes. Its non-metallic construction eliminates corrosion concerns and is approved for direct contact with drinking water systems.

Product Advantages

• ✅ Mechanical Reliability – Compatible with PEX-a, PEX-b, and PEX-c tubing using standard crimp/clamp ring systems.
• ✅ Non-Corrosive Material – Engineered polymer resists scaling and degradation in high-moisture environments.
• ✅ Consistent Seal Integrity – Designed to maintain hydrostatic pressure without leakage under typical working conditions.

Specifications

• Material: Engineered Polymer (EP)
• Size: 3/4 inch nominal
• Connection: ASTM F1807/F2159 PEX barb
• Applications: Water distribution (hot and cold), capped branch lines, test plugs, system flushing ports
• Standards Compliance: ANSI/NSF 61 and 14; Lead-free under NSF 372

Installation Notes

Install using approved copper crimp rings or stainless steel clamp rings with certified tools. Ensure barb alignment and full ring engagement to prevent potential seal failure. No plumber's tape or sealant is required for this mechanical joint type. Suitable for pressure testing applications prior to final fixture connection.

Common Use Cases

Typically used in residential and multifamily installations to seal unused ports in manifolds, water heater tees, or system branches. Also applicable for temporary caps during staged installations or when isolating future fixture points. Withstands typical working pressures for PEX systems up to 160 psi at 73°F (with appropriate derating for temperature).

Material Compliance

This plug meets low-lead requirements for potable water systems under NSF/ANSI 372 and complies with federal and state drinking water safety regulations. The engineered polymer body offers thermal insulation properties, making it suitable for high-temperature applications without conductive heat loss concerns.

The 3/4 inch PEX EP Plug is a durable, field-proven component for professional plumbing systems requiring reliable end-of-line termination. It supports pressure-rated sealing performance and system code compliance in both temporary and permanent configurations.