Specifications include, but are not limited to: EXHAUST FAN *Furnish Only* Brand: American Coolair Corporation or equal Model: CRBA24LD8363 or equal Fan to Include: Cubic Feet per Minute (CFM): minimum of 5320 Actual Badge (inWG): 0.750 RPM: 754.2 - 921.8 Motor to include: Maximum Horse Power: 1 RPM: minimum of 1750 Voltage: 3 phase, 208/230/460v Hertz: 60 Hz SONES: 10-13.6 Sound Power Level (LwA): 73 Decibels (dBA): @ 5' - 62 @ 10" - 56 @ 20" - 50 OCTAVE BAND SOUND POWER (Lw) 63 Hz - 81 125 Hz - 80 500 Hz - 71 1000 Hz - 66 4000 Hz - 60 8000 Hz - 52 *Aluminum wheel to be computer balanced *Motor compartment isolated from airstream *Variable pitch motor pulley *Vibration isolator *Weatherproof housing *Drip proof motors NEMA standard *1/2" galvanized mesh birdscreen *UL listed ***CURB SIZE MUST BE 34"