Do you have wind draft or rain issues with your chimney. Speedi-Windcap controls the downdraft issue in high wind area and in costal regions. In high wind or down draft situations Speedi-Windcap will pivot depending on the wind direction to protect you from both the rain and wind downdraft. Speedi-Wincap is manufactured to fit single and double wall pipe, and can be adapted to fit a triple wall using the adjustable adapter. It can also be adapted to fit masonry chimney using the adjustable tile adaptor. Speedi-Windcap comes with a grease zerk fitting installed for easy maintenance. The pivot system is lubricated with non-melting molybdenum grease that is resistant to high temperatures and provides a pliable seal. The pivot system also uses stainless ball bearings for longevity and smooth directional pivot.