Quietcool 5.5 Trident Pro X Whole House Fan

BRAND NEW IN BOX We also install (price not included) in ad QC STL TRI-5.5X Specifications Air Flow - Hi: 5,068 CFM / Low: 4,438 CFM HVI-916 Airflow (for CA Title 24 New Construction) - Hi: 3,940 CFM / Low: 3,220 CFM Recommended SQFT Coverage @ 2-3 CFM per SQFT - Covers 1,689 SQFT to 2,534 SQFT Energy Use - Hi: 632 Watts / Low: 522 Watts Amps - Hi: 5.56 / Low: 4.53 Motor Voltage - 120 VAC, 60 Hz # of Speeds - 2 dBA - 51.2 / Low: 45.7 Minimum Attic Clearance - 38" Duct Diameter - 20" Duct Length - 9' Motor Head Diameter - 20-1/2" Motor Head Length - 13-1/2" Dampers - Barometric Pressurized R5 Dampers Controls - Included: 8 Hr Electronic Timer & HI-LOW-OFF switch Framing - None Required Joist Cutting - None Required; fits 16” or 24” on center Minimum Suggested Attic Venting - 6.76 SQ FT net free area Ceiling Rough Opening - 14-1/4” x 30-1/4” Removable Grille Outside Dimension - 16” x 32” Shipping Weight - 75 lbs Box Dimensions - 39” x 24” x 39” In The Box - QC STL TRI-5.5X Motorhead, damper box, ceiling grille, 9' duct, cut-out template, accessory bag, controls, window locks