Barometric/Gravity Damper - CBLBarometric Gravity Damper CBL (GLA) MADE TO ORDER Lead Time 2 3 weeks Custom Sizes Available CLICK HERE FOR SUBMITTAL DESCRIPTION: Barometric or gravity damper, with simultaneous moving horizontal blades with 3 1 8" apart. L Frame or U Frame, used for applications with no longer than 60" x 48" . This model is ideal to use with exhaust fans in a warehouse or large vessels for proper air circulation. Its operation is based on the pressure exerted by the
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