Amazon.com: FRESH SPEED 5 Inch 125mm Round Metal Dryer Vent Cover Flat Louver with Mouse Mesh : Appliances
2Pcs Grille D'aération Ronde, 125 mm Grille de Ventilation Rond en Acier INOX Grille d'aération Conduit Moustiquaire Grille [63] - Cdiscount Bricolage
Indoor Vent Air Outlet Adjustable Ventilation Hood Round Duct Ceiling Cover ABS Ventilation Hole Kitchen And Bathroom Air Outlet - AliExpress
Airope 125 mm exhaust fan with check valve + integrated mosquito net, low wattage 9.1 W, low noise only 31 dBA, wall mounting, for bathroom and kitchen, toilet, office, quiet operation :
38mm PU Ventilation Pipe PU Air Duct 63mm 76mm 102mm 125mm 150mm 200mm 300mm 600mm PU Air Dust Hose - China PU Air Dust Hose, PU Ventilation Air Duct | Made-in-China.com
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38mm PU Ventilation Pipe PU Air Duct 63mm 76mm 102mm 125mm 150mm 200mm 300mm 600mm PU Air Dust Hose - China PU Air Dust Hose, PU Ventilation Air Duct | Made-in-China.com
220V/12V/24V Stainless Steel 201 Motorized Damper Solenoid Valve 4/5/6/8 Inch Air Duct Vent 63/76/80/100/125/150/200/250 Mm (Color : OD 125mm, Size : AC220V) - Amazon.com
Ventilator Prima Klima PK125WHSP-2 Whisperblower 360/460m3/h, 125mm, 2-speed - higarden.eu