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Trickle – 20 dB(A) @ 3m
Designed to comply with building regulations on ventilation (F1)
Condition: New
78 M3/hour (21 l/s)
RD4500 x 1 (350mm long duct)
Natural Ventilation Roof Cowl Flat Duct/Grilles/Accessories Trickle – 20 dB(A) @Natural ventilation intended for extracting from rooms, subroofing space, ventilating ducts and shafts. This product works, using a natural power source wind. Under the influence of wind, regardless of a type, direction and force, the active head of the deflector always rotates in one direction, producing rarefaction of air in the ventilating duct, draft increases, air exchange noticeably improves. This product doesn't require connection to electric.
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