Mueller Streamline FTG00166 Copper Reducer 2x1-1/2

Product Description

The MUELLER STREAMLINE FTG00166 is a wrot copper reducer fitting designed to transition between two different pipe sizes in a copper plumbing system. It connects a 2-inch line to a 1-1/2-inch line, making it a standard component in residential and commercial water distribution, drain, and supply piping. The fitting is manufactured from wrot copper, which offers superior strength, pressure resistance, and long-term reliability compared to cast alternatives. It meets ASME and NSF compliance standards, confirming suitability for potable water applications. Licensed plumbers install this fitting using standard sweat-solder or press-fit methods depending on the job specification.

This reducer fitting is used wherever a pipe diameter change is required in a copper system — common scenarios include main line reductions at branch takeoffs, equipment connections, and fixture supply transitions. It is suited for both new construction and retrofit work in residential homes, light commercial buildings, and mechanical rooms. The compact profile fits in tight spaces and the wrot copper construction handles the stress of thermal expansion and contraction across seasonal temperature swings.

Key Features

• Wrot copper construction for high strength and pressure performance
• Connects 2-inch to 1-1/2-inch copper pipe for diameter reduction
• Meets ASME and NSF standards for potable water service
• Compact body dimensions: 2.27 inches height, 2.91 inches length, 2.27 inches width
• Lightweight at 0.43 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement and standard-use fitting for 2-inch by 1-1/2-inch copper pipe systems meeting ASME and NSF installation requirements.

Installation Notes

Installation is performed by a licensed plumber in accordance with the applicable plumbing code, such as the IPC or local equivalent. Shut off and depressurize the water supply and drain the line before cutting in the fitting. Clean and flux all mating surfaces before soldering, and allow the joint to cool fully before restoring pressure. Do not use this fitting with non-copper pipe materials without verifying adapter compatibility.

Technical Specifications

• Material: Wrot Copper
• Connection Size: 2 x 1-1/2 inches
• Connection Type: Copper
• Actual Height: 2.27 inches
• Actual Length/Depth: 2.91 inches
• Actual Width: 2.27 inches
• Actual Weight: 0.43 pounds
• Standards / Compliance: ASME, NSF

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: FTG00166