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A-A-50554A

Filter, Air-Extended Area, Initial Installation

This specification covers replaceable, extended media area type air filters with externally supported, nonsupported, or self-supporting cartridges. The filters are installed in permanent metal holding frames and housings as required for use in air conditioning, heating, and ventilating systems for removing particulate matter found in the atmosphere.

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Department of Defense [DOD]


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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