Automatic Vent Opener - Standard Replacement Cylinder

This replacement cylinder is designed for the Standard Automatic Vent Opener, ensuring your greenhouse ventilation system continues to operate effectively. Over time, the material inside a vent opener may lose its ability to expand and contract, reducing its performance. Installing a new cylinder restores proper function, allowing your vents to open and close automatically in response to temperature changes without manual adjustment.

Ideal for maintaining consistent airflow, temperature control, and plant health, this replacement part is easy to install and built for long-lasting use. Keeping your vent system in good working order helps prevent heat stress, supports healthy growth, and minimizes disease risk in your greenhouse environment.

For more greenhouse accessories and replacement parts, explore our Greenhouses Collection.