Solar Harvest Greenhouses

Solar Harvest 4 1/2' Extension Kit Each extension adds 4 1/2' to the length of the Solar Harvest greenhouse. Every extension also includes 2 additional manual roof vents. There is no limit to the number of extensions that can be added to the Solar Harvest greenhouses. Extensions can be installed at the same time as the greenhouse or added at a later date.

Solar Harvest greenhouses feature a superior tubular aluminum frame, insulated 4mm twinwall polycarbonate panels, sturdy hinged Dutch door, a built-in gutter system, and plenty of roof vents for maximum air circulation. Combine that with the Fast Click system that drastically reduces assembly time all for a price that is hard to beat! Enjoy the light diffusion and beauty that polycarbonate affords without the fear of breakage and drastic temperature changes experienced in glass greenhouses....

The Univent allows solar-powered control of top and side mounted window vents thanks to its dual springs. Univent window openers have an adjustable opening temperature of 60° F to 75° F and an 18" maximum opening which would be reached at approximately 20° to 30°F above opening temperature. Univents are made from corrosion resistant materials including aluminum and stainless steel. This model is recommended for use with Grow More and Solar Harvest greenhouse vents because they include a...