Alton | Thermofor Louver Window Opener Piston Replacement estimateend-14 or discolor

or discolor

• Firmly press in cartridge until it makes a firm seal

meditation corners

side walls

Alton | Thermofor Louver Window Opener Piston Replacement estimateend-14 or discolorThe 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