Univent Automatic Vent Opener

Charley's Greenhouse & Garden Verified independent store

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Want 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 bas ed on the temperature, helping keep airflow steady and your plants happy, all without electricity. It’s a simple, hands-off solution for maintaining the perfect climate. Show more