- 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
Palram - Canopia Brighton - LED Grow Light (HG1042)
Palram – Canopia 6x12 EcoGrow 2 Greenhouse Base Kit (HG7034)
ELGO 2-in-1 Watering Kit - Micro Sprinklers & Dripline Set (ELCOMBO15)
Palram - Canopia Shade Kit for Greenhouses (HG1006)
Polytex Ground Cover Kit 12x14 (HG1214)
Palram – Canopia 6x6 EcoGrow 2 Greenhouse Base Kit (HG7031)
Palram – Canopia 6x8 EcoGrow 2 Greenhouse Base Kit (HG7032)
ELGO Micro Sprinkler Kit (ELMS3)
Palram – Canopia 8x20 Hobby Grand Gardener Greenhouse Base Kit (HG7133)
Palram - Canopia Hybrid /Mythos Greenhouse Air Vent Kit - Silver (HG1013)
Palram - Canopia Plant Hangers 10 Count Kit (HG1010)
Palram - Canopia 1500W Portable Fan Heater (HG1040)