Mueller Streamline BUS00448 Copper Flush Bushing 3/4x1/2

Product Description

The MUELLER STREAMLINE BUS00448 is a copper flush bushing designed to reduce a 3/4-inch fitting (FTG) connection down to a 1/2-inch sweat (C) connection. This type of bushing seats flush within the fitting socket, allowing a clean, low-profile joint without adding significant length to the assembly. It is made from copper and is used in sweat-soldered copper piping systems. Plumbers and pipefitters install this fitting during new construction and service work where a pipe size reduction is needed at an existing fitting rather than inline. The outer diameter measures 7/8 x 5/8 inches and the bore diameter is 0.5 inches.

This flush bushing is suited for residential and light commercial plumbing systems where copper sweat connections are standard. It fits into applications such as supply lines, water distribution piping, and hydronic systems where a FTG-to-C reduction is required at a valve, tee, or coupling. The flush design minimizes protrusion into the fitting socket, which helps maintain flow characteristics through the transition. It is compliant with common copper fitting standards used across the plumbing trade.

Key Features

• Flush bushing design seats inside the fitting socket for a compact, low-profile reduction joint
• 3/4-inch FTG inlet reduces to 1/2-inch C (sweat) outlet
• Bore diameter of 0.5 inches for 1/2-inch copper tubing
• Outer diameter of 7/8 x 5/8 inches for proper socket fit
• Copper construction for compatibility with sweat-soldered copper piping systems
• Lightweight at 0.10 pounds for easy handling and stocking

Compatibility

Designed as an OEM-style replacement and standard-trade fitting for copper sweat piping systems using 3/4-inch FTG x 1/2-inch C connections.

Installation Notes

This fitting is installed by licensed plumbers using standard copper sweat-soldering techniques in accordance with applicable IPC or local plumbing codes. Shut off and depressurize the water supply and allow all piping to cool before beginning work. Clean all mating surfaces with emery cloth and apply flux before soldering. Do not overheat the fitting, as excessive heat can damage the copper or cause poor joint integrity.

Technical Specifications

• Material: Copper
• Connection Type: FTG x C (Fitting x Sweat)
• Inlet Size: 3/4 inches FTG
• Outlet Size: 1/2 inches C
• Bore Diameter: 0.5 inches
• Outer Diameter: 7/8 x 5/8 inches
• Shipping Weight: 0.10 pounds
• Shipping Dimensions: 0.88 x 0.84 x 0.90 inches

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: BUS00448