Rion Greenhouse Window Vent Opener

Replacement Accessories for Rion Modular Greenhouses

Rion Greenhouse Window Opener automatically opens and closes Roof Vents when the temperature changes. The modular nature of the Rion Greenhouse allows these accessories to be added at any time. Automatically opens and closes Roof Vent when temperature changes. The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens the vent. As the temperature cools, the mineral shrinks and a spring closes the vent and resets the piston. The opening and closing of the vent is gradual allowing just the right amount of air flow for cooling.

This item in currently on Backorder. We do not yet know of any estimated time of restocking. When we find out, this page will show the estimated date of restocking the moment we find out.