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Net Free Air Flow
16" x 6.5" Foundation Vent w/ Damper #3021
Net Free Air Flow:
24.57 square inches
16" x 6.5" Garage Vent w/o Damper #3721
Net Free Air Flow:
29.48 square inches
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Net Free Air Flow:
24.57 square inches
Net Free Air Flow:
29.48 square inches