Sigma 3 x 1.4 ft. Automatic Roof Vent brand_sunpack High PAR light transmission

High PAR light transmission

while the Easy Slide Cross Rail System locks the frame into place

Purlins: (1) run 5" rollform galvanized steel under peak

This 3mm predator attacks and kills all mobile stages of thrips (larvae and adults)

Available Phosphate (P205)

Sigma 3 x 1.4 ft. Automatic Roof Vent brand_sunpack High PAR light transmissionSupercharge your Sigma Greenhouse with the 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 shriveling or withering of your plants. Sigma Automatic Roof Vent Features: Made from galvanized steel and