Labels:air filter | anechoic chamber | book | box | house | shelf | sky | windowpane OCR: Vertical Line Blade Design VERTICAL BLADE DESIGN Vertical louvers have the distinction 0 providing flowing continuous curtain- -like appearance without the need for an expressed vertical mullion Thus for the vertical blades themselves act as individual drains Since rainwater naturally wants to move from the sky to the ground vertical louver nf Storm Resistant design IS an excellent and economical Wev to provide protection from driven rain expr wind
