Call for details: 888-648-5333

5118 BTU’s

there is no extention kit for Riga

28mm double pane insulated Low E glass in windows and doors

fits most louvres

Alton | Thermofor Classic Roof Vent Auto Opener garden shed Call for details: 888-648-5333The Thermofor Classic Roof Auto Opener is a simple, reliable way to keep your Alton greenhouse properly ventilated, without any manual effort. Designed specifically for Alton greenhouse roof vents, it uses a heat sensitive, oil filled piston that automatically opens the vent as temperatures rise, helping create a healthier growing environment for your plants. As the greenhouse warms, the piston expands and gently lifts the vent. When temperatures