This wood heater chimney cap and cowl is for use on a masonry chimney when the flue is required to go past the end of the chimney. It is designed to allow smoke to escape but not allow rain down the flue & to fit a crimped outer flue. Combination of stainless steel and galvanised steel. Also available in fully stainless steel - please contact us for pricing.Delivery Time : Please allow 2-3 weeks for this item to be processed and dispatched from our warehouse. Once your order has been dispatched the tracking details shall be forwarded to you.