Brand: Philmore LKG. MPN: 50-94500. Qualitek Rosin Core (RA300) Lead-Free Wire Solder. SOLDERING / Solder. Product Specifications: 21 AWG, 96.5/3.0/0.5 alloy tin/silver/copper, .032 in. dia., 2.2% flux, 8 oz. dispenser pack.