For all orders exceeding a value of 100USD shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

Open and Close Window: The automatic window opener kit is ideal for your greenhouse window--opens and closes your greenhouse window, and the maximum window opening is 18''; Please ensure your greenhouse window can be opened freely by at least 18"

Solar Heat Sensitive: The automatic vent opener for greenhouse uses solar energy, non electric, open or close the greenhouse vents as temperature rises or drops; Fully adjustable between 20 - 25°C (68 - 77°F)

Avoid Overheating of Your Greenhouse: This greenhouse window opener maintains the best growing temperature as the temperature changes automatically, which can effectively avoids overheating of your greenhouse

Easy to Use: The greenhouse roof vent opener can be clamped onto or screwed onto your greenhouse frame, easy to assemble; Do not use this opener anywhere the temperature will exceed 50° (122F)

Durable Material: This automatic vent opener adopts high-quality aluminum alloy material for long service life, and it has good weather and rust resistance, durable in use