Sigma Automatic Roof Vent 16mm you can trust the Palma

you can trust the Palma to deliver just the right climate

Actual Dimensions: 42" x 42" inlet size

Price per sheet: $80

fill the reservoir with water and fertilizer – and that’s it

including greenhouse

Sigma Automatic Roof Vent 16mm you can trust the PalmaPlease note: this window only fits Sigma Greenhouse models. Supercharge your Sigma Greenhouse with the Planta Sigma Automatic Roof Vent. Improve air circulation by bringing in the fresh outside breeze, keeping your plants healthy and disease free. The automatic roof vent is heat activated, which requires no electrical power or programming. This function ensures that hot air escapes during the day, preventing shrivelling or withering of your plants.