Sirocco Universal Chimney Cowl - Black | 300540Sirocco Universal Chimney Cowl Black 300540 Designed to cure problems caused by down draughts Reduces rain entry into the chimney Suitable for use with gas, oil, and solid fuels Width: 320mm Height: 155mm Sirocco Universal Chimney Cowl Black 300540 The Sirocco Chimney Cowl is designed to cure problems caused by down draught, reduces rain entry into the chimney and features a stainless steel bird guard mesh fitted to reduce bird and vermin entry. Easy