Sigma Greenhouse Roof Vent Size:3 ft. × 1.4 ft. - manual 7" wide lockable door features

7" wide lockable door features a wide ramp for easy wheelbarrow or wheelchair access

nitrile rubber

easy-to-install and maintain kit of hoses

3-inch (185mm) length

thus its Austrian reference to ‘combination’

Sigma Greenhouse Roof Vent Size:3 ft. × 1.4 ft. - manual 7" wide lockable door featuresGrow a flourishing garden unbothered by the sweltering summer heat. Easily control the airflow into your Sigma Greenhouse to bring in a refreshing breeze that helps your plants grow healthy and strong. Sigma Roof Vent Features: Made from galvanized steel and polycarbonate for long lasting durability Manual opening so you can control the ventilation of the greenhouse Rust resistant and low maintenance year round Simple design for fast and easy