https://www.newmilitarysurplus.com/usmitestspar.html
US MILITARY TENT STOVE SPARK ARRESTER 4" Solid Fuel Type I Heaters
US MILITARY TENT STOVE SPARK ARRESTER 4" Solid Fuel Type I Heaters
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https://publications.polaris.com/owner/owners-manuals/0000741344.xml/$/0000419500
Spark Arrester - Polaris Online Publication Portal
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