Greenhouse Aluminum Intake Shutter Size:36" Non-volatile memory holds programs indefinitely

Non-volatile memory holds programs indefinitely without batteries except date and time

Simply attach using spring wire and lock channel for unbeatable protection against common garden pests

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Versatile Garden Arch for Climbing Vines

Greenhouse Aluminum Intake Shutter Size:36" Non-volatile memory holds programs indefinitelyFresh Air Intake for Greenhouse or Hoop House Bring outside air into your greenhouse with this intake shutter. Aluminum shutters open with negative pressure as outdoor air is drawn in through the shutter, and hot air is exhausted through a motorized shutter fan on opposite sides of the hoop house. This shutter is designed for easy installation with spring wire and lock channel and this hardware kit. Check out this article on greenhouse ventilation to