Back filter exhaust grilles AH 710 and AH 780 back filter exhaust grilles are available in two versions: • AH 710: extruded aluminum frame. Fixed horizontal profiled vanes, anodized, 40° bent. Extruded aluminum frame for 23 mm thick filter. Front part hinged to frame. • AH 780: extruded anodized aluminum frame. Central aluminum square grid 12.5 x 12.5 mm. Extruded aluminum frame for 23 mm thick filter. Front part hinged to frame. Nominal size AH 710 AH 780 Overall dimensions 600X600 (for overhanging installation on false ceiling) Quick selection The air flow rates and the pressure drop rates are certified according to the UNI 8728 and prEN 12238 standards, by an independent and certified body, in compliance with the legislation in force on energy saving standards. Pressure drop Pa < 5 < 25
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