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Box of (24) 1 lb. spools, or (5) five-pound spools (depending on availability), of 50:50 Tin/Lead Wire Solder, OR 60:40 wire solder, OR pure tin wire solder. It is PURE solder, NOT acid core or resin core. It should not be used for water pipes if it contains lead (pure tin solder is lead free). Made in the USA.
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