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roof cowls
a loss of only 1°C
the centred spigot will hold the flexible duct in place
Continuously Fresh
Haelix Quadro Valve 125mm Roof Underlay Membrane roof cowlsA stylish and high performance design extract and supply valve DN125 (RAL 9016), which can be inserted into the Air Excellent valve adaptors. For both air supply and extract Contemporary design Paintable Easy installation Easy adjustment with 9 step air flow restrictor Low pressure drop Low sound level Flange to prevent dust deposits Detailed information The Haelix valve, with its contemporary design, is the final touch to any residential ventilation
