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American Standard Gas Boiler Model G-405, SN 4B-J3

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stevecrea Member Posts: 1

November 10 in Gas Heating

Hello! Can you please tell me the date of manufacture of the American Standard Model G-405, SN 4B-J3?

Thank you!

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HVACNUT Member Posts: 7,157

November 11

I found a manual that shows a revision in February of 1972.

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