Labels:plant | railhead | trade name | windowpane OCR: AMCA 500-L test. Wind Driven Rain testing 29 mph wind velocity and of rain per hour Storm Standard Resistant Drainable Water has hard time getting Water pours right through through Wind Driven Rain Still Air" Drainable louver in Louver storm Click here vew movie clip Windows Windows Media Media Plaver Plaver MPG WMV 174KB 1.31MB