Rion Automatic Roof OpenerItem#: HN-BLS089
- Fits Rion Hobby, Green Giant, and Prestige greenhouses
- Opens and closes vent when temperature changes
- Gradual opening and closing for proper air flow
Never worry about whether your plants are receiving the right amount of air when the temperature changes with the Rion Automatic Roof Opener. Designed to automatically open and close when the temperature changes, this opener is has a metal cylinder containing a mineral that expands when heated, opening the vent, and contracts when cooled, closing the vent. The opening and closing are gradual to ensure the right amount of air flow. Designed for the Rion Hobby Gardener Series HG-8, HR-12, HG-16, HG-20, HG-20 greenhouses, all Green Giant, and all Prestige Greenhouses.
Dimensions & Specifications