Dual Spring Mechanism: Delivers robust thrust force and stability for reliable window operation in standard settings or exposed, windy locations for like mountainous greenhouses.
for Solar Thermal Activation: Uses solar energy and a gas-filled cylinder that expands with heat to automatically open and close between 15°C-25°C (60°F-77°F), enabling passive climate control without wiring or batteries. Aluminum Construction: Built from LONGLASTING aluminum alloy with a protective black coating to withstand rain, UV exposure, and temperature extremes year after year.
Greenhouse-Specific Precision: Engineered exclusively for greenhouse ventilation-maintains perfect internal temperatures to support consistent plant growth and prevent heat stress or cold shock.
general Mounting Compatibility: Includes adjustable clamps and mounting hardware designed to fit most standard greenhouse window frames; refer to the manufacturer's SIZE CHART before ordering.
