A low profile cowl vent with a small cowl. Please note due to production times any orders over 4 vent tiles will be on an estimated lead time of 7 to 10 working days. Description Cowl incorporates barriers to prevent water ingress and block wind driven rain, allowing the water to drain away down slope. Factory fitted round felt sleeve which significantly reduces the felt tearing that can occur around rectangular spigots. CV10K Large spigot for roof ventilation. Extraction This product can be converted for extraction with a COA1 adaptor. Ventilation Area 10000mm2. Water Resistance Exceeds all relevant parts of DoE partners in technology programme. Roof Pitches Over 20 Degrees. Note Colour Match Available - Please contact the Sales Office on 01752 692760.