J&D Manufacturing Wall Master Galvanized Exhaust Fan, 50" - 21000 CFM (Belt Drive, 230/460 Volt, 1HP, Three Phase, 3 Blade Galvanized Prop) – 50" - 21000 CFM (Belt Drive, 230/460 Volt, 1HP, Three Phase, 3 Blade Galvanized Prop)

J&D Manufacturing's Wall Master exhaust fan offers high volume output and smooth, efficient operation. The heavy duty 18 gauge galvanized housing is strong, compact, and easy to install. J&D's Wall Master is a dependable fan suited for nearly any application including agricultural buildings, greenhouses, and warehouses. Wall Master Exhaust Fan Features: Available in 36" and 50" models Heavy duty 18 gauge galvanized housing Galvanized X–frame motor mount provides solid motor mounting for increased motor life and quieter operation Aluminum shutters with tie bar to prevent flapping and locking open Poly guard clips to reduce vibration for quiet performance Spring belt tensioning system reduces bounce at startup on all belt driven models 3, 4 or 6 blade galvanized propeller is balanced for smooth operation Applications: Dairy, Greenhouse, Industrial, Poultry Fan Size Rough Opening 36" 41" W x 41" H 50" 54 3/4" W x 54 3/4" H 55" 66 1/4" W x 66 1/4" H