Need better airflow in your greenhouse without breaking the bank? The UYGALAXY Manual Film Roll-Up Unit lets you easily vent the roof or sidewalls by rolling the film up or down with a hand crank. Perfect for solar greenhouses, veggie houses, or multi-span setups. It can handle up to 262 feet of roll length, and the 13-foot chain gives you a comfy operating height – no stretching needed. Built with a cast aluminum body and precise ABS pulley, it’s rust-resistant and durable for years of use. The 4:1 gear ratio makes rolling smooth and low-effort, and the self-locking inner gear holds the film exactly where you stop it. Includes the main unit with chain and nut set. No power required – just a simple, reliable way to control temperature and humidity. Your plants will thank you!
