A.y. Mcdonald 5420-311 No Lead Brass Coupling 1-1/2 in

Product Description

The A.Y. McDonald 5420-311 is a no-lead brass coupling designed for joining PEX, CPVC, or polyethylene tubing in residential and commercial plumbing systems. Built with an insert x insert connection configuration, this fitting accepts standard barbed fittings or push-fit adapters and creates a secure, leak-resistant joint when properly crimped or clamped. The 1-1/2-inch fitting size handles high-volume supply lines and is well suited for potable water applications where lead-free compliance is required. Plumbers and pipefitters working on new construction or retrofit projects rely on this type of fitting for its reliable performance and straightforward installation.

This coupling is appropriate for residential and light commercial plumbing installations where a straight inline connection between two runs of compatible flexible tubing is needed. It is commonly used in domestic water supply lines, hydronic heating systems, and water distribution manifolds. The no-lead brass construction meets federal and state requirements for fittings used in potable water systems.

Key Features

• No-lead brass construction meets Safe Drinking Water Act requirements for potable water use
• Insert x insert connection type for use with barbed or crimp-ring installation methods
• 1-1/2-inch fitting size handles high-flow residential and commercial supply lines
• Solid brass body provides corrosion resistance and long service life
• Compact coupling profile for installations in tight spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-1/2-inch insert-style plumbing connections in residential and commercial potable water systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve system pressure before cutting into any existing line. Use the appropriate crimp tool or clamp tool rated for the tubing material and fitting size. Inspect the tubing end for burrs or deformation before seating it fully onto the fitting barb.

Technical Specifications

• Fitting Size: 1-1/2 inches
• Connection Type: Insert x Insert
• Fitting Material: Brass
• Lead Free: Yes
• Weight: 0.60 pounds

Standard Information

• Brand: A.Y. McDonald
• Manufacturer Part Number: 5420-311