- On sale!






Shed Sizes
Shed Types
Shed Brands
Carports
Gazebos
Greenhouses
Playgrounds
Other Structures
The Automatic Louver Vent Opener was designed to automatically control the temperature and provide additional ventilation in all Rion Greenhouses.
The Automatic Louver Vent Opener was designed to automatically control the temperature and provide additional ventilation in all Rion Greenhouses. As the air inside the greenhouse warms, the vent gradually opens to allow the correct amount of air flow into the greenhouse and closes when the optimal temperature is reached. The vent arm was designed with the use of natural minerals that expand with heat to push a piston, which raises the window, as the air gets warmer then contracts as it cools, closing with the use of a spring. The Automatic Vent Opener operates without the use of electricity.
Ship Method: Small Parcel
ELGO 2-in-1 Watering Kit - Misting Sprinklers & Dripper Set (ELMGS48)
ELGO 25 Drippers Planters Kit (ELPD25)
ELGO Portable 2 Dripline Reel System (ELDNR)
Shelter Logic 6ft x25ft Shade Cloth Roll - Evergreen (25642)
Palram - Canopia Shelf Kit for Greenhouses (HG1007)
Palram – Canopia 8x16 Hobby / Grand Gardener Greenhouse Base Kit (HG7132)
Palram – Canopia Cable Anchor Kit (HG1029)
Shelter Logic 4x4 Raised Garden Bed Greenhouse - Fully Closable (70617)
Palram – Canopia Trellising Kit Pro (HG1024)
ELGO 2-in-1 Watering Kit - Micro Sprinklers & Dripline Set (ELCOMBO15)
Palram - Canopia Hybrid /Mythos Greenhouse Air Vent Kit - Silver (HG1013)
ELGO Micro Sprinkler Kit (ELMS3)