Poultry Fan GFRP-72'' In dairy barns: Our fans create extreme air velocity for cow cooling, insect control, drying of bedding and employee comfort. Our unique airfoil deflectors direct the air over and under the cows better than any other fan. One of our fans can replace up to 4 large single speed panel fans or 8-36" basket fans and uses 50% the power. With the optional variable speed frequency drive you can adjust the fan performance to meet your internal environmental requirements for 365 days of the year. APPLICATIONS: • Ideal for tunnel and exhaust ventilation in Dairy, Poultry,Swine, Greenhouse and industrial application. Due to our large volume output, fewer fans are required so your installation cost is reduced. Technical Specifications: GFRP-72"