Limited Time Sale - While Supplies Last

Sigma Ventilation Window

Approx Size: 3′ × 1.4′

Grow a flourishing garden unbothered by the sweltering summer heat. Easily control the airflow into your Sigma Greenhouse to bring in a refreshing breeze that helps your plants grow healthy and strong.


  • Made from galvanized steel and polycarbonate for long-lasting durability.
  • Manual opening so you can control the ventilation of the greenhouse.
  • Rust-resistant and low maintenance year-round.
  • Simple design for fast and easy installation.
  • 3′ ft × 1.4′ ft size – exclusively designed for Sigma Greenhouse models.
Backorder now - will be available end of early fall.
Sale price
$55 USD
Regular price
Regular: $55 USD
Have questions? Call us 1-877-669-1286