Wind force

A quick learner from Croatia says:
October 27, 2016
How strong wind force can stand these weep hole flaps ?
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Paul from SWISCO responded:
October 31, 2016
With the wind blowing at the the outside of the window, the flap on the 26-186 weep hole cover can take winds up to 70 mph.
Weep hole cover, 1-7/8"
Weep hole cover, 1-7/8"
26-186
$1.57
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How to install a weep hole cover
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