Elkhart Products COU-1 Copper Coupling with Stop 1 in

Product Description

The ELKHART PRODUCTS COU-1 is a copper coupling with stop designed for sweat-solder copper tube connections in plumbing and hydronic systems. Part of the KLEENFIT product line, this fitting arrives cleaned and bagged for immediate use, reducing prep time on the job. The internal stop ensures accurate, consistent pipe seating depth, which is critical for reliable solder joints. At 0.122 pounds, it is a standard-weight 1-inch fitting suited for residential and light commercial water supply and distribution work.

This coupling is used in copper tube systems requiring a CxC (copper-to-copper) sweat connection at 1-inch nominal pipe size. Typical applications include domestic hot and cold water supply lines, hydronic heating distribution, and general plumbing rough-in work. The KLEENFIT cleaning and bagging process means the fitting surfaces are prepped and protected against oxidation, which supports consistent solder flow without additional flux prep delays in the field.

Key Features

• Internal stop for consistent, accurate pipe seating depth on both ends
• Copper construction suitable for potable water and hydronic applications
• CxC sweat connection — compatible with standard solder and flux joining methods
• KLEENFIT pre-cleaned and bagged to reduce field prep and oxidation risk
• Compact profile at 1.23 x 1.91 x 1.23 inches for tight-space installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch nominal copper tube systems using CxC sweat connections in residential and commercial plumbing applications.

Installation Notes

Installation is 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. Clean pipe ends and fitting sockets with emery cloth or a pipe cleaning tool, apply appropriate flux, and solder using an open-flame torch with lead-free solder per code. Do not pressure-test the joint until the solder has fully cooled and solidified.

Technical Specifications

• Size: 1 inch x 1 inch
• Connection Type: CxC (Copper x Copper)
• Join Method: Solder (Sweat)
• Material: Copper
• Product Line: KLEENFIT
• Dimensions (L x W x H): 1.23 x 1.91 x 1.23 inches
• Weight: 0.122 pounds
• Model: 100
• UPC: 683264309098

Standard Information

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