Cast Iron
A cast iron waste pipe will not be centered inside 2x4 framing, and will protrude beyond the back of the stud pocket. Use
2x6 framing or build a chase behind 2x4 framing for cast iron waste pipes.
The center of a KOHLER K-7208 cast iron waste pipe should follow the guidelines provided in the “Install Framing and
Waste Outlet” section.
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Kohler Co.
