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VERTICAL DISCHARGE
• Galvanized steel housing
installs easily between
ceiling joists
• Steel mounting brackets
with keyhole slots for fast
installation
504
• 10" vertical discharge
• Fits 10" round duct–use
Model 472 transition/
damper (available
separately) for 8" round
duct (performance will be
reduced)
505
• 8" vertical discharge with
built-in damper
• 8" fan, 8¼" diameter housing
673
• 6" vertical discharge with
built-in damper
• 6" paintable fan, spin-on,
white polymeric grille
CHAIN-OPERATED UTILITY FANS
• Pull-chain opens the door
and starts fan
• Housing adjusts to fit walls
from 4½"–9½" thick
• Specially designed
polymeric fan blade
• Housing features foam-
insulated door for energy
efficiency
506
• 10" fan (10
3
⁄8" diameter
sleeve)
507
• 8" fan (8
3
⁄8" diameter sleeve)
512
• 6" Room-to-Room
• Use 57W or 57V variable
speed control separately
ROOM-TO-ROOM FANS
Room-to-Room ventilators provide quick
solutions where more ventilation is
needed—without installing new ductwork.
• Built-in variable speed control
• Easy installation through wall 3"–5½" thick
• Permanently lubricated motor
• Paintable white polymeric grilles
• Not for use in kitchens
510, 10"; 511, 8"
506 | 507
510 | 511
512
504 | 505 673
504 673 504
505
506
507
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