Roof Wind Turbines Cap Vent Unpowered Rotation - 4Inch 10Inch 12Inch Air Vent Outlet - Turbines Vent Cap No Noise Rotation by Wind/air - Easy to Install Rainproof Ventilator Chimney Farm

Stainless Steel Spinner,Chimney Spinner Cowl,Antis Downdraught Chimney Cowl with Rotating Cap Ventilation,Cowl Cap . Turbines Ventilator1. Strong and durable thickened 304 stainless steel 2. Fits most standard chimney pot bases3. Very easy to install ★Rotating fume hood, rotating antissink, suitable for most standard fume hoods, very effective in preventings wind and increasing ventilation. Protects your chimney from rain and moistures, especially for infrequently used chimneys.★Multipurpose: Swivel hood for vent pipes, chimneys and exhaust units. Lacing provides maximum protection without compromising chimney performance. Specifications:Name: fireplace coverMaterial: 304 stainless steelSize: 110mm -4.3in, 150mm -5.9in, 160mm -6.3in, 200mm -7.9in, 250mm -9.8in, 300mm -11.8in, 400mm -15.7inIf you have any questions, please feel free to contact us and we will get back to you within 24 hours

• ▲Sturdy and durable thickened 304 stainless steel rotating fume hood, suitable for most standard fume hoods, very effective in preventings wind and increasing ventilation.
• ▲The curved fan blade encrypted blade ensures that rain never intrudes during working condition. High exhaust efficiency Can run lightly. Especially suitable for chimneys that are not frequently used.
• ▲Use the natural wind and air thermal convection caused by the temperature difference between indoor and outdoor to drive the turbines to rotate and exhaust the stale indoor air
• ▲Turbo vent requires no assembly, just removes and install it where you need it. All installation accessories are included
• ▲Efficient venting and the ability to run lightly Protects your chimney from rain and moistures, no noise, rain, wind