Automatic Roof Vent Opener for Rion GreenhouseDESCRIPTION The Automatic Vent Opener was designed to automatically control the temperature 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 wax that expands as the air gets warmer, to push a piston which raises the window, then contracts as it cools,

ASSEMBLED EXTERIOR DIMENSIONS DEPTH (FT) 10'6" ASSEMBLED EXTERIOR DIMENSIONS HEIGHT (FT) 7'7"

(1) Double Hinged Door with closers and lock

SKU: HG1022

If features a rust-resistant

9% of harmful UV rays to prevent plant burn

30" long anchors are available for large greenhouses or going into sandy soil ground

elegant design

Modern design - offers best value for best price

Minimum 2 shelves to ship

Tomatoes or beans etc

Rust-Resistant

Works with all Rion Sun Room 2 greenhouses