conic fan

the special design with 3 blades provide more air flow for tunnel ventilation. Its conic funnel which stays outside of the house increase the air capacity. The shutter system is similar to the TVS 1400 Fan
conic fan

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conic fan

the special design with 3 blades provide more air flow for tunnel ventilation. Its conic funnel which stays outside of the house increase the air capacity. The shutter system is similar to the TVS 1400 Fan