Roof Window 40 (with adjusting lever for Professional Greenhouse

Rion Greenhouse Roof Vents for GH40 series

Need more air circulation? Add a Rion Roof Vent to your greenhouse. Note: One roof vent per 4 feet in length is recommended for optimum ventilation.

Roof Window 40 (with adjusting lever for Professional Greenhouse,

Rion Greenhouse Roof Vents for GH40 series

Need more air circulation? Add a Rion Roof Vent to your greenhouse. Note: One roof vent per 4 feet in length is recommended for optimum ventilation.