Riga Greenhouse Roof Window c_Hydroponic Nutrients & Fertilizers Upon colonization of the host

Upon colonization of the host plant

Made with black

Reliably produce year-round

The 4mm twin-wall polycarbonate panels resist impacts and UV yellowing while giving plants industry-leading insulation

Riga Greenhouse Roof Window c_Hydroponic Nutrients & Fertilizers Upon colonization of the hostMaximize the natural ventilation in your Riga Greenhouse with an extra 40 wide x 24 deep automated roof window. Designed for hands free operation, each window includes (1) automatic opener that responds to indoor temperature changes, ensuring optimal airflow without manual adjustments. (Fits Riga IIs, IIIs, III, IVs, IV and V) Riga Greenhouse Roof Window Features: Anodized aluminum frame 8mm UV coated twin wall Polycarbonate glazing Dimensions: 40 in.