491

The built-in wall vents 491 are equipped with storm blinds. They are attached invisibly in the wall opening with wall anchors or clip springs (small dimensions). Are used for applications the require a good water-resistance and low air flow, or where there is a lot of wind.
  • Good ingress protection
  • Good water resistance at low flow rate
  • Storm construction
  • Snow-resistant
26
33.3
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IP2XD
29
34
123
0.09
118
0.092
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