Speedwellstar Greenhouse 15kg Window Vent Opener 2 Spring Automatic Up To
From £26.99
Palram Canopia Automatic Vent Opener
£53.00Save 19%
£42.95
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The Automatic Vent Opener was designed to automatically control the temperature andhumidity levels. It provides additional ventilation for all Palram - Canopia Greenhouses, makinggardening easier. As the air inside the greenhouse warms, the vent gradually opens to allowthe correct amount of airflow into the greenhouse until the optimal temperature is reached.The vent arm was designed with the use of wax that expands with heat and contracts when itcools.
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