Alton | Thermofor Classic Roof Vent Auto Opener Shelf The Eden Raised Garden Bed

The Eden Raised Garden Bed 4ft x 8ft x 17

all made from quality western red cedar

4 side tilt windows

50W solar panel

3 Years Limited Warranty

Alton | Thermofor Classic Roof Vent Auto Opener Shelf The Eden Raised Garden BedThe Thermofor Classic Roof Auto Opener is a simple, reliable way to keep your Alton greenhouse properly ventilated, without any manual effort. Designed specifically for Alton greenhouse roof vents, it uses a heat sensitive, oil filled piston that automatically opens the vent as temperatures rise, helping create a healthier growing environment for your plants. As the greenhouse warms, the piston expands and gently lifts the vent. When temperatures