Lucas-Milhaupt Sil-Fos® Rings for brazing copper tubular components. Braze rings are easy to use, minimize waste, and provide visual verification of a complete, sound braze joint. Sil-Fos Rings are a brazing alloy composed of 15% Silver (Ag), formed into rings to fit inside the flared fitting used to join copper tubing and fittings (commonly used in HVAC/R systems). When properly heated, the rings create a tight, leak proof joint.
Warning: this product contains a chemical known to the State of California to cause cancer. P65Warnings.ca.gov
0.0016 Pounds (lbs)
0.625 Inches (In)
6 Inches (In)
Country of Origin
0.875 Inches (In)
Best alloy for general copper-copper brazing in the Sil-Fos family. For copper-to-copper joints the phosphorus in the Sil-Fos product serves as the fluxing agent and no separate flux is necessary. For brass applications, however, flux is recommended. For