Univent Automatic Vent Opener Greenhouse Cooling Eyebolts are included to attach

Eyebolts are included to attach to the included chain to the rod

Meet your new gardening sidekick—the Dramm Hydroponic Clippers

it works without creating salt buildup and contains no urea

and one-year grow calendar

Univent Automatic Vent Opener Greenhouse Cooling Eyebolts are included to attachWant 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.