Elkhart Products COU-1X34 Reducer Coupling 1x3/4 in Copper

Product Description

The ELKHART PRODUCTS COU-1X34 is a copper reducer coupling with stop, designed for sweat-solder connections in residential and commercial plumbing systems. Sized at 1 inch by 3/4 inch, it uses a C x C (copper-to-copper) connection type and includes an integral stop to ensure consistent seating depth during installation. Part of the KLEENFIT product line, this fitting is pre-cleaned and bagged to keep the mating surfaces free of oxidation and contamination ahead of soldering. At 0.098 pounds, it is a compact, lightweight fitting suited for tight spaces in water supply and distribution piping.

This coupling is used wherever a sweat-solder transition from 1-inch to 3/4-inch copper tubing is required. Typical applications include residential water supply lines, commercial plumbing distribution headers, and HVAC hydronic piping systems. Licensed plumbers and pipefitters install this fitting using standard copper tubing, solder, and flux. The KLEENFIT pre-cleaned surface condition reduces prep time on the job and supports consistent solder joints without additional mechanical cleaning before assembly.

Key Features

• Integral stop ensures accurate, repeatable seating depth for both tube ends
• C x C solder connection compatible with standard copper tubing and sweat-solder technique
• KLEENFIT pre-cleaned and bagged — mating surfaces protected from oxidation at time of installation
• Compact copper body at 0.098 pounds keeps added weight minimal in overhead and wall runs
• 1 inch x 3/4 inch reducing size covers one of the most common supply-line step-down transitions

Compatibility

Designed as an OEM-style sweat-solder reducer for standard 1-inch and 3/4-inch copper tubing used in residential and commercial water supply and hydronic plumbing systems.

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 drain the line fully before cutting or fitting any pipe. Clean tube ends and apply flux per the solder manufacturer's instructions before applying heat, even with KLEENFIT pre-cleaned fittings. Do not overheat the fitting during soldering, as excessive heat can damage the stop and compromise joint integrity.

Technical Specifications

• Model: 101R
• Size: 1 inch x 3/4 inch
• Connection Type: C x C (Copper to Copper)
• Join Method: Solder (Sweat)
• Material: Copper
• Product Line: KLEENFIT
• Weight: 0.098 pounds
• Dimensions (L x W x H): 1.23 inches x 2.07 inches x 1.23 inches
• UPC: 683264307339

Standard Information

• Brand: ELKHART PRODUCTS
• Manufacturer Part Number: COU-1X34