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ASHRAE 133   2024   Method of Testing Direct Evaporative Air Coolers 50 $
ASHRAE 133   2015   Method of Testing Direct Evaporative Air Coolers 50 $
ASHRAE 133   2008   Method of Testing Direct Evaporative Air Coolers 30 $
ASHRAE 133   2001   Method of Testing Direct Evaporative Air Coolers 30 $