Mueller Streamline CPL00034 Copper Coupling 1-1/4 C X C

Product Description

The MUELLER STREAMLINE CPL00034 is a wrot copper pressure coupling with a rolled stop, sized at 1-1/4 x 1-1/4 inches and configured for copper-to-copper (C x C) sweat connections. The rolled stop positions the pipe consistently inside the fitting, ensuring accurate depth seating and a repeatable solder joint. Built from wrot copper, this coupling meets ASME and NSF standards, making it suitable for potable water and general plumbing pressure systems. Licensed plumbers and pipefitters install this fitting during new construction, system extensions, and pipe repair work where a full-length, pressure-rated copper coupling is required.

This coupling is used in residential and light commercial plumbing systems carrying water supply lines. The 1-1/4 inch size suits main distribution lines, branch supply runs, and recirculation piping where moderate flow capacity is needed. Its C x C end configuration requires soldering with appropriate flux and lead-free solder per local plumbing code requirements. The wrot copper construction offers reliable performance in both hot and cold water applications.

Key Features

• Rolled stop design ensures consistent pipe seating depth for repeatable solder joints
• Wrot copper construction for high strength and corrosion resistance
• 1-1/4 x 1-1/4 inch C x C configuration for standard sweat soldering
• ASME and NSF compliant for potable water system use
• Full coupling design with no center stop removal required

Compatibility

Designed as an OEM-style replacement and standard-fit coupling for 1-1/4 inch copper tubing in residential and commercial plumbing pressure systems using C x C sweat connections.

Installation Notes

Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off the water supply and fully depressurize and drain the line before cutting or soldering. Clean pipe ends and fitting sockets thoroughly with emery cloth and apply lead-free flux before soldering. Use only lead-free solder where required for potable water applications.

Technical Specifications

• Material: Wrot Copper
• Connection Size: 1-1/4 x 1-1/4 inches
• Connection Type: C x C
• Actual Height: 1.49 inches
• Actual Length/Depth: 2.11 inches
• Actual Width: 1.49 inches
• Actual Weight: 0.15 pounds
• Standards / Compliance: ASME, NSF

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: CPL00034