Metal Windproof Chimney Cowl Stainless Steel Hood Perfect for Your Home. Rotating hood for ventilation pipes, smoke chimneys, and air extraction. The gairing provides maximum protection without hindering the performance of the chimney. Principle Of Operation:the rings of this chimney cowl are specially designed and placed over the other in a way that the wind cannot go down the chinmey, thus making this cap a prefect anti downdraught solution. This pot will not allow the fumes. Stainless Steel Rotating Chimney Cowl Cap: Spinner Anti-Downdraught Fits Most Standard Chimney Pots Very effective in preventing wind and increasing ventilation. Hat designed to rotate with the action of the wind, so that the more the wind blows, the more the blades rotate, and the more powerful the air intake is from the inside out. Protect your chimney from rain and moisture, which is especially suitable for chimneys that are not used frequently. Stainless steel construction Thickened fixed feet; include complete fixing kit. Size:as the picture shows. 1Stainless Steel Top Cover. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Also, the each additional item means exactly the the same color and size. Transit time may be a little delayed because of the bad weather.