OUTDOOR VENT EXTENSIONS
Philadelphia Code Subcode P, § 904
in effectSECTION 904 OUTDOOR VENT EXTENSIONS
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P-904.3 Vent termination. Vent stacks or stack vents shall terminate outdoors to the open air or to a stack-type air admittance valve in accordance with Section 918.
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Source: City of Philadelphia, The Philadelphia Code and Home Rule Charter (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/philadelphia/latest/philadelphia_pa/0-0-0-312333Fetched: 10/27/2026
