Flat duct 222x89mm, telescopic wall sleeve 330-580mm, backflow flap

VO/569212

Air-optimized moulded parts that meet the manufacturer's specifications for modern ventilation units such as troughed ventilators, ceiling ventilators and other extractor fans with a flat duct connection. The softened inner radii contribute to a better air flow result, especially in the vents. The optimAir system is exemplary in terms of sealing at the connections and is compatible with other leading systems on the market.

1 telescopic wall sleeve with backflow preventer, 222 x 89 mm

White external grille - optimAIRo system

Outer grille made of white plastic
Flat duct connection
Integrated backflow preventer
Extendable telescopic tube from 330 - 580 mm
Wall opening Ø: 165 mm - round duct
Wall grille: 190 x 190 x 8 mm
Spigot 223 x 90 mm

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