24" Whole House Fan by Air Vent

AIR VENT INC
# Direct-drive whole house fan with shutter
# Two speed operation - pull-chain switch
# Heavy steel housing
# Durable powder-coated finish
# Can be mounted without cutting attic joist
# In assembled wood frame to simplify installation
# 24" has 2.8 amp motor with 4,500 CFM
# 30" has 5.6 amp motor with 5,700 CFM
# Size: 24"
# For Homes: To 1,500 sq.ft