LucasMilhaupt® Sil-Fos® Brazing Alloy, Series: Silvaloy® 15, 1/2 in Dia, Chemical Composition: Copper(80%), Phosphorus(5%), Silver(15%), Gray, Applicable Materials: Copper
It is used extensively on refrigeration units, air conditioning apparatus, electrical conductors, copper and brass pipe fittings, and other copper and brass equipment