Colt TOP 2 All Purpose (Brown) Bolt Fixing £42.95 Description Reviews Introduced in 1985, The Colt Top is still the most popular selling anti downdraught cowl in the UK! Colt Tops work on the same principle as Colt Cowls but are more efficient as their rounded shape creates lift whichever direction the wind is blowing, eliminating downdraught. Rain drains help divert water outside the chimney pot. Colt Tops are available in Gas and All Purpose models. The Colt Top All Purpose (brown) is the same as the Colt Top Gas (aluminium), but additionally has a painted finish which is highly resistant to corrosive fuels such as Coalite, Furnacite and anthracite. It is suitable for all fuels. Static Cowl Stainless Steel hook bolts and wing nuts Complies with BS 715: 1993 Fully assembled (ready to install) Includes stainless steel birdguard No special tools needed Effective when wind blows from any direction Withstands flu temperatures up to 200°C 135mm height x 435mm width For use with most fuel types Reviews Write a customer review and share your thoughts with other customers. Be the first to review this product.