Automatic Vent Opener - Gigavent Hoes absorbent medium—ideal for seed starting

absorbent medium—ideal for seed starting

Whether for fresh table grapes or crafting your signature wine

Life expectancy of 6-10 years

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

Automatic Vent Opener - Gigavent Hoes absorbent medium—ideal for seed startingIngenious 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