Twister Ventilation Fan c_Hydroponic Supplements & Hormones dense root structure and preventing

dense root structure and preventing roots from circling

12 1/2" x 8" 2

Size Gallon Liter 19 1/2" x 12 3/8" 9

these rollformed members offer substantially greater resistance to the deflection causing forces of rain

The trays are strong with reinforced sides and lips

Twister Ventilation Fan c_Hydroponic Supplements & Hormones dense root structure and preventingThis medium volume exhaust fan will distribute fresh air and provide cooling for almost any commercial, industrial or agricultural application. Perfect for Hog and Poultry barns or small greenhouses. Thermally protected, totally enclosed motor comes with a two year warranty and heavy 18 gauge housing will hold up for years to come. Unique butterfly style shutter opens up fully for maximum CFM output while providing easy access for cleaning. Optional