Eff 103177-lf Brass Pex Coupling 1 Inch X 1 Inch

Product Description

The EFF 103177-lf is a brass PEX coupling fitting designed for connecting two 1 inch PEX lines in residential and commercial plumbing systems. This coupling provides a reliable, leak-resistant joint between two lengths of PEX tubing without reducing flow. Plumbers and pipefitters rely on PEX couplings like this one to repair damaged sections of pipe, extend existing runs, or complete new installations in potable water systems, radiant heat distribution, and hydronic heating applications.

Brass is the preferred material for PEX fittings in professional plumbing work. It resists corrosion, handles the temperature swings common in hot and cold water lines, and holds a secure connection under sustained water pressure. The 103177-lf carries a lead-free brass construction, making it suitable for use in drinking water applications where compliance with lead-free standards is required by code.

The 1 inch by 1 inch connection size matches standard full-bore PEX tubing, which helps maintain adequate flow rates throughout the system. This fitting is compatible with PEX-A, PEX-B, and PEX-C tubing when used with the appropriate crimp rings or clamp rings. Installation is straightforward using standard PEX crimp or clamp tools, making it a practical choice for both rough-in work and service repairs. The uniform connection size on both ends simplifies inline splicing and reduces the chance of sizing errors on the job.

Trade professionals working on plumbing repairs, new construction, or remodel projects will find this fitting meets the demands of everyday field work. It is a durable, code-compliant solution for 1 inch PEX water distribution lines.

• Lead-free brass construction meets lead-free compliance requirements for potable water systems
• 1 inch PEX by 1 inch PEX connection supports full-bore flow and easy inline splicing
• Compatible with standard PEX crimp and clamp installation methods for fast, reliable connections

Product Highlights

The EFF 103177-lf delivers a durable, lead-free brass coupling for joining two 1 inch PEX lines in potable water and hydronic plumbing systems. Its standard sizing and broad tool compatibility make it a dependable choice for professional plumbing work.

Product Information

Standard Information

• Brand: EFF
• Manufacturer Part Number: 103177-lf

Technical Specifications

• Fitting Type: Coupling
• Connection Size 1: 1 inch
• Connection Type 1: PEX
• Connection Size 2: 1 inch
• Connection Type 2: PEX
• Connection Type: PEX x PEX
• Material Construction: Brass
• Material: Brass