Rion Automatic Roof Vent Opener for Rion Greenhouses antique potting bench 4Class: 125Sub: 5SHIPPING FROM CITY

4Class: 125Sub: 5SHIPPING FROM CITY

6Pallet Length: 120Pallet Width: 32Pallet Height: 32Pallet Weight: 519Density: 10

peak): 139Dimensions (in): 506" L x 141" W x 139" HSidewall Height (in): 120Total Product Weight: 1065Snow Load (Lbs/Sq Ft): 30

Durable laser cut

Capacity: 3 gallons

Rion Automatic Roof Vent Opener for Rion Greenhouses antique potting bench 4Class: 125Sub: 5SHIPPING FROM CITYThe 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, closing with