Free Storage Until Spring 2022

Sigma Ventilation Window

Size: 3′ × 1.4′

The Sigma ventilation window is a perfect complement to your Sigma Greenhouse. Provides ample ventilation and improves air circulation inside your Sigma Greenhouse. It is easy to install. 

  • Galvanized Steel Structure
  • Rust-Resistant
  • 3′ × 1.4′
  • Will only be compatible with Sigma Greenhouse models
Backorder now - will be available end of January 2022
Sale price
$55 USD
Regular price
Regular: $55 USD
Have questions? Call us 1-877-669-1286