Palram - Canopia Automatic Roof Vent Opener for Prestige, Grand/Hobby Gardener and EcoGrow Greenhouses hg1007 Mounting hardware is included (for

Mounting hardware is included (for greenhouses with bolt channels)

4Total Product Weight: 10

One siding kit is needed for  Aquila 2050 awnings and two are needed for Aquila 4100 awnings

Versatile Usage: Not just a greenhouse

rain gutters and roof vents are standard features of the Snap & Grow

Palram - Canopia Automatic Roof Vent Opener for Prestige, Grand/Hobby Gardener and EcoGrow Greenhouses hg1007 Mounting hardware is included (forThe 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