BIBISTORE Automatic Greenhouse Vent Opener Auto Solar Cold Frame Window Openers Agriculture Hothouse Roof Opening Kits Gardening Greenhouse Accessories-33 Lbs Lift CapacityTwo Springs

- HIGH QUALITY&DURABLE-Made of high quality of galvanized steel.Durable and strong for long time use. - COMPLETE AUTOMATIC-This vent opener will automatically open and close your greenhouse window while the environment temperature changes , which will help you maintain the best growing temperature and prevents your greenhouse from overheating. - NON ELECTRIC-Use solar energy only,no batteries or electricity required.Economic and Eco-friendly. - TWO SPRINGS&HIGH LIFT CAPABILITY-Lifts vent weight up to 33 lbs (15 kg ),covers most of greenhouse windows.If you it is still not enough for your window,you could use two window openers together. - EASY TO INSTALL- Fit for most of aluminum&wooden frame greenhouse. Comes with a fitting accessory pack and a detailed manual for easy installation.

Product description

Features

Working Condition

Storage&Maintenance

Made of high quality of galvanized steel.Durable and strong for long time use.

Solar energy sourced, no operating cost.Automatically open or close the greenhouse vents as temperature rises or drops.

This automatic window opener will help you maintaining the best growing temperature and prevent your greenhouse from overheating.

Two springs are more strong and better withstand Wind.

Lifts up to 33 Lbs(15kgs),suitable for most of greenhouse window and vent.

Comes with a fitting accessory pack and a detailed manual for easy installation.