Mueller Streamline CPL00993 Copper Coupling with Stop

Product Description

The MUELLER STREAMLINE CPL00993 is a wrot copper coupling with a staked stop, designed for use in residential and light commercial plumbing systems. This fitting joins two lengths of 3/8-inch copper tubing using sweat (solder) connections on both ends in a C x C configuration. The integrated stop prevents the tubing from being pushed too far into the fitting, ensuring consistent joint depth during assembly. At 0.02 pounds and compact dimensions, the CPL00993 is a reliable OEM-style component for copper water supply and distribution lines. Licensed plumbers and pipefitters are the typical installers.

The CPL00993 is suited for potable water supply lines, hydronic distribution, and general copper plumbing repair or new construction. Its wrot copper construction meets NSF, UL, and UR compliance standards, making it appropriate for drinking water applications. The fitting accepts 3/8-inch copper tubing on both ends and is intended for use wherever a low-profile, solder-joint coupling with a tubing stop is required in tight or standard plumbing rough-in conditions.

Key Features

• Staked internal stop ensures consistent tubing insertion depth for reliable solder joints
• Wrot copper construction for durability and compatibility with copper tubing systems
• C x C (sweat) connection on both ends for standard soldered assembly
• NSF, UL, and UR listed for use in potable water systems
• Compact size at 0.86 inches length and 0.56 inches width for tight-space installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/8-inch copper tubing in residential and commercial plumbing systems using standard sweat-joint connections.

Installation Notes

Installation should be performed by a licensed plumber following applicable IPC or local plumbing code requirements. Shut off the water supply and depressurize the line before cutting and fitting the coupling. Use a tubing cutter for a clean, square cut, and clean all mating surfaces with emery cloth and flux before soldering. Avoid overheating the fitting during the soldering process, as excessive heat can damage the staked stop or weaken the joint.

Technical Specifications

• Connection Size: 3/8 x 3/8 inches
• Connection Type: C x C (sweat)
• Material: Wrot Copper
• Actual Length/Depth: 0.86 inches
• Actual Height: 0.56 inches
• Actual Width: 0.56 inches
• Actual Weight: 0.02 pounds
• Standards/Compliance: NSF, UL, UR

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: CPL00993