A movable plate installed inside the Exhaust Valve precisely directs the air inlet or outlet. Ceiling Air Valve 4" 5" 6".
Air Vent Ceiling Grille Outet Inlet Ventilation Fan Duct Ducting 4" 5" 6" (AN)
75to150mm Air Vent Ceiling Grille Outet Inlet Ventilation Fan Duct Ducting
Air Valve Vent Ceiling Grille Outet Inlet Heat Recovery Ventilation 4" 5" 6" 8"
Gravity Flaps External Wall Ventilation Exhaust Cover Air Vent Grill Grille 4/6"
Stainless Steel External Wall Air Vent Extractor Grille No Return Flaps 125mm 5"
White Square Extractor Louvre Air Vent Duct Grille 100mm, 4 Inch Wall Fan Outlet
