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Automatic Roof Vent Arm Opener RION Greenhouses


Automatic Roof Vent Arm Opener / Automatic climate control, for RION Greenhouses ONLY.

  • Works with all Rion's Models
  • Opens vent window automatically at warm temperature for air circulation and heat relief. Closes when temperature cools
  • Automatic respond to weather changes – no need to stay near the greenhouse.
  • Opening temperature can be adjusted for specific needs
  • Mechanic system – no electricity is needed
  • Auto opener Roof is Temperature activated by a thermally powered piston so no batteries or motors to fail. One opener required for each roof vent.
The Automatic Roof Vent Arm Opener RION Greenhouses is far and away, one of our most popular items. People can't seem to get enough of it.

Inventory Last Updated: Feb 26, 2021
The Automatic Roof Vent Arm Opener RION Greenhouses is far and away, one of our most popular items. People can't seem to get enough of it.

Inventory Last Updated: Feb 26, 2021