On Sat, 12 Feb 2005 07:12:57 -0800, Abe wrote:

What is the capacity of an average, US, standard run-of-the-mill built in
bathtub filled up to the very bottom of the overflow?
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42 gallons
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Let me clarify. All the standard size American Standard tubs are 42
gallons. I also went to the Kohler site and they are the same. When in
doubt RTFM!