Nibco Inc W00690D 1/4 Inch Cxc Copper Coupling with Stop

Product Description

The NIBCO INC W00690D is a 1/4-inch copper coupling with integral stop, designed for sweat (solder) connections in copper tube systems. It features solder cups on both ends and a dimple stop that positions the tube at the correct depth for consistent, leak-free joints. This fitting connects two lengths of copper tubing in a straight run and is manufactured lead-free to meet current potable water and plumbing code requirements. Licensed plumbers and HVAC technicians use this fitting in both new construction and repair applications across residential and light commercial systems.

This coupling is suited for 1/4-inch copper tube connections in refrigeration lines, HVAC refrigerant circuits, and small-diameter plumbing runs where a sweat-soldered CxC fitting is required. The dimple stop eliminates guesswork during insertion, making it a reliable choice for tight-access repairs or production installs where consistent joint depth matters. It is sold individually and also available in package quantities of 25 units for stocking and service van use.

Key Features

• Dimple stop controls tube insertion depth for consistent solder joint quality
• Solder cups on both ends accept standard 1/4-inch copper tubing
• Lead-free construction meets NSF and applicable plumbing code requirements
• Straight CxC configuration for in-line tube-to-tube connections
• Lightweight at 0.42 pounds per unit, suitable for overhead and tight-space installs

Compatibility

Designed as an OEM-style sweat fitting replacement for standard 1/4-inch copper tube systems. Compatible with Type K, L, and M copper tubing of the same nominal diameter using standard lead-free solder and flux.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with local plumbing codes and IFGC or IPC requirements where applicable. Shut off and depressurize the system and drain any standing water from the line before cutting and fitting. Clean tube ends and fitting cups thoroughly with emery cloth and apply a rated flux before soldering. Do not overheat the fitting; apply heat to the fitting body and allow capillary action to draw solder into the joint.

Technical Specifications

• Tube Size: 1/4 inches
• Connection Type: CxC Sweat (Solder)
• Lead-Free: Yes
• Weight: 0.42 pounds
• Package Quantity: 25 per package
• Unit of Measure: EA

Standard Information

• Brand: NIBCO INC
• Manufacturer Part Number: W00690D