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    +1 for buy from a US company or your local hardware store. Even though I'm not from the US. It's worth realizing there are no obvious bonuses when buying locally, including laws governing manufacture and sale. Commented Nov 6, 2017 at 15:32
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    @DRF You mean non-obvious? Commented Nov 6, 2017 at 22:46
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    Buying from a US company is not adequate. The major US industrial supply company I get parts from lists a wide variety of leaded brass pipes and fittings, intended for industrial applications. They note which ones are approved for potable water. Commented Nov 7, 2017 at 2:15
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    @immibis Yeap. My bad. Commented Nov 7, 2017 at 6:29
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    The problem with this answer is the law it's based on only applies to the "wetted surfaces" of pipes, fittings and joining compounds that provide "water for human consumption". Plumbing is more than potable water. Given the useful properties of lead, it seems entirely plausible that pipes and fittings not intended for water for human consumption can still be bought with lead in them. Netduke's answer doesn't quote the law for potable water supplies but is a more accurate answer to this question as it stands. Commented Nov 7, 2017 at 12:39