Mueller Streamline BUS00484 Copper Reducer Fitting

Product Description

The MUELLER STREAMLINE BUS00484 is a copper reducer fitting designed to transition between two different tube sizes in a soldered copper piping system. It connects a 3/4-inch fitting-end (FTG) socket to a 5/8-inch copper (C) tube end, allowing a smooth reduction in line size within the same run. This fitting is installed by licensed plumbers and HVAC technicians during new construction, system modifications, or repair work where line sizing changes are required. The fitting measures 0.88 inches in both height and width, with a length of 1.59 inches, and weighs approximately 1.15 pounds. It meets multiple ASME standards, confirming dimensional accuracy and material reliability.

This reducer fitting is suited for residential and light commercial copper plumbing and refrigeration piping applications where a reduction from a 3/4-inch fitting end to a 5/8-inch copper tube end is needed. It is commonly used in domestic water distribution systems, hydronic heating lines, and HVAC refrigerant or condensate piping layouts. The FTG x C configuration makes it compatible with standard sweat-solder assembly methods used throughout the trade.

Key Features

• 3/4 x 5/8 inch connection size for in-line pipe reduction
• FTG x C connection type supports standard sweat-solder installation
• Compact form factor: 0.88 inches wide by 1.59 inches long
• Compliant with ASME B16.15, B16.18, B16.22, B16.24, B16.50, and B1.20.1
• Copper construction suitable for potable water and HVAC piping systems

Compatibility

Designed as an OEM-style replacement or new-installation copper reducer fitting for 3/4-inch FTG to 5/8-inch C tube connections in standard sweat-solder copper piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician following local plumbing codes and ASME standards. Shut off the water supply and relieve system pressure before cutting into any existing line. Clean and flux both the fitting socket and tube end thoroughly before applying heat with a torch for soldering. Avoid overheating the fitting, as excessive heat can damage the copper and compromise the joint integrity.

Technical Specifications

• Connection Size: 3/4 x 5/8 inches
• Connection Type: FTG x C
• Actual Height: 0.88 inches
• Actual Width: 0.88 inches
• Actual Length/Depth: 1.59 inches
• Actual Weight: 1.15 pounds
• Standards/Compliance: ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.24, ASME B16.50, ASME B1.20.1

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: BUS00484