Automatic Vent Opener - Gigavent Hoes and flowers

and flowers

Life expectancy of 6-10 years

absorbent medium—ideal for seed starting

Vine & Crowns Characteristics Chart to compare growing characteristics for all our berries

Automatic Vent Opener - Gigavent Hoes and flowersIngenious 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 77F. Fully open at 86 90F. Fully closed at 55F. Strongly recommended for all our glazed season extenders because it