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.