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Automatic Vent Opener - Standard - SEF110

Greenhouses

Greenhouses

Cold Frame and Hotbed Gardening

Cold Frame and Hotbed Gardening

$39.99
  • Qualifies for $11.99 per package flat rate shipping in the Continental US.
  • In stock. Ships from our warehouse in Northern California.

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  • Buy 10 for $35.99 each and save 11%

Ingenious temperature-sensitive device that automatically opens and closes coldframe lids, greenhouse windows and even skylights. Works throughout the day and maintain a constant interior climate, something impossible to achieve by manual adjustments.

Requires no batteries or electricity.

It can be adjusted to start opening between 60-77°F. Fully open at 86-90°F. Fully closed at 55°F.

Strongly recommended for all our glazed season extenders because it dramatically improves plant growth.

The hydraulic cylinder comes with a 1 year warranty. The average lifetime of the cylinder is 5-10 years, although some can last up to 20 years.

Replacement cylinders are available.

Screw directly into polycarbonate panels, wood, or metal frames. The Standard Vent Opener can open a hinged window or vent weighing as much as 32 lb.

For larger panes use the stronger Gigavent with all metal construction, to lift up to 65 lbs.

  • Item Model Number: SEF110
  • Shipping Dimensions: 15 x 3.75 x 2 inches
  • Shipping Weight: 2 pounds

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