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    HPR-330

    Greenheck Product # HPR-330
    Fabricated airfoil blades; pressure relief ½ to 6 in. wg (.012 - 1.5 kPa); back pressure of 13½ to 20 in. wg (3.4 - 5 kPa); velocity up to 6400 fpm (32.5 m/s) and temperatures from -40°F to 250°F (-40 to 121°C).
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