A H cowl is one of the best preforming anti down draught chimney cowl. H Cowls are suitable for most conventional clay chimney pots with an 8 inch (200mm) internal and 91/2 inch (240mm) external diameter. H Cowl is designed to prevent foreign bodies entering chimneys, to increase updraught and to prevent rain entering the chimney.
H Cowl For 9″ Clay Chimney Pot
|A (mm)||B (mm)||C (mm)||D (mm)|
- Promote positive updraught
- Fits most conventional chimney pots
- Use on chimneys in downdraught situations
- Durable construction, quick and simple to install
- Prevents rain ingress.