WHAT IS SPECIAL ABOUT THE KDF FORMULA 73 FILAMENT?
KDF Formula 73 (F-73) is a specially processed alloy of 70% copper and 30% zinc. The filament is processed by special machinery, which produces a fine, hair-like strand of brass only 60 to 80 microns in thickness, about the same as a human hair. Each Crystal Ball for the Bath contains 1 1/2oz. of F-73 strands, which if laid end to end would extend over 4000 feet. This provides the Crystal Ball with a great surface area, which in turn accelerates the electro-chemical action of the F-73. The Crystal Ball for the Bath is absolutely unique. There is nothing with which to compare it.
