If you want to increase the ventilation, extra windows can be fitted in Basic greenhouses.
Note:
Extra windows are supplied...  (Read More)

This set includes the greenhouse only. Optional and recommended items include the greenhouse base, automatic window opener, cedar benches, greenhouse...  (Read More)

This set includes the greenhouse only.

With the basic series it is possible to add extensions to the greenhouse....  (Read More)

Buy now and receive a Free 4-Tier Grow Rack! Deal Ends 2/28/2009. The opener allows thermostatic control of roof vents....  (Read More)