The Colt Cowl uses aerodynamic principles to create lift at the top of the chimney as air moves over it. The effect cures downdraught and shifts residual fumes and has been used in more than 3 million installations.

• The original anti-downdraught cowl sold by Colt Cowls since 1931
• 1.0mm aluminium
• Easy fixing with tried and tested hook bolts
• No tools required to fit
• Withstands flue temperatures up to 200 degrees celsius
• Maintenance free
• 285mm height, 310mm width
• One size fits all flue sizes between 150-250mm
• Steel hook bolts electro plated