Univent Automatic Vent Opener Greenhouse Cooling breathable fabric

breathable fabric

Best when used in multiples with high-mounted vents to allow hot air to escape and low-mounted vents to allow cool fresh air to enter

Greta Heinen provides helpful information

A Quick Note for Canadian Shoppers

Univent Automatic Vent Opener Greenhouse Cooling breathable fabricWant a reliable and economical way to control a light greenhouse or cold frame top hinged roof vent? The Univent Automatic Vent Opener does just that! It opens and closes vents based on the temperature, helping keep airflow steady and your plants happy, all without electricity. Its a simple, hands off solution for maintaining the perfect climate.