Alton | Thermofor Louver Window Opener Piston Replacement SIDETABLE Homeowners with limited space who

Homeowners with limited space who still want a functional greenhouse

Includes a solar-powered commercial-grade ventilation system that produces more than twice the power needed to operate the fan at full capacity

With the Palram - Canopia Americana Greenhouse

Medium Total package weight: 216 lbs

Alton | Thermofor Louver Window Opener Piston Replacement SIDETABLE Homeowners with limited space whoThe Thermofor Louver Vent Replacement Cylinder is designed to restore smooth, automatic operation to your greenhouse louver vent opener. Compatible with Thermofor, Robinsons, and Alton branded louver openers, this replacement cylinder helps maintain proper airflow and temperature control without manual adjustment. Inside the cylinder is a heat sensitive wax core that expands as temperatures rise and contracts as they cool. This natural movement powers