Best 424, 427, 453 Specifications
TRANSITIONS
AND DAMPERS
SPECIFICATION SHEET
Model 411 Transition
3¼" x 10" to 6" round
•
Model 412H Transition
3¼" x 10" to 7" round
•
Model 413 Transition
3¼" x 10" to 8" round
•
All models above 30 GA galvanized steel
construction
Model 414 Transition
10" round to 8" round
•
24 GA galvanized steel
•
Model T486 Transition
8" round to 6" round
•
30 GA galvanized steel
•
Model 423 Transition
4½" x 18½" to 10" round
•
- vertical discharge
26 GA galvanized steel
•
construction
Model 424 Transition
4½" x 18½" to 10" round
•
horizontal, rear discharge
26 GA galvanized steel
•
construction
Model 427 Transition
4½" x 18½" to 10" round
•
horizontal discharge
26 GA galvanized steel
•
construction
Model 453
Model T487 Transition
8" round to 7" round
•
24 GA galvanized steel
•
Broan-NuTone LLC Hartford, Wisconsin www.broan.com www.nutone.com 800-558-1711
Broan-NuTone Canada Mississauga, Ontario www.broan.ca 877-896-1119
REFERENCE QTY. REMARKS Project
Location
Architect
Engineer
Contractor
Submitted by Date
Transition
4½" x 18½" to 10"
•
round horizontal,
left discharge
26 GA galvanized
•
steel construction
Model 454
Transition
Same as Model 453 except -
•
horizontal right discharge
41C 99041123V
Model 459 Transition
3¼" x 14" to 8" round -
•
vertical discharge
30 GA galvanized steel
•
construction
Model T460 Transition
3¼" x 14" to 7" round -
•
vertical discharge
30 GA galvanized steel
•
construction
Model T462 Transition
3¼" x 14" to 6" round -
•
vertical discharge
30 GA galvanized steel
•
construction
Model S99610015 Transition
8" x 12" to 10" round male -
•
vertical discharge
26 GA galvanized steel
•
construction
Model S99610028 Transition
8" x 12" to 10" round female -
•
vertical discharge
26 GA galvanized steel
•
construction
Model BP87 Damper
7" round
•
Extruded steel with electrically-bonded
•
expoxy finish
.016 Aluminum louvers
•
Model 472 Transition / Damper
10" round to 8" round
•
Spring-loaded aluminum louvers
•
Rubber stops
•
24 GA galvanized steel
•
Model 475 Transition
6" round to 4" round
•
Black, polymeric construction
•
Model 475B Transition
Six-pack of Model 475
•
Model T81212 Transition
8" x 12" to 12" round
•
28 ga. galvanized steel
•
Model BP87Q Damper
7" round
•
Extruded steel with electrically-bonded
•
expoxy finish
.016 Aluminum louvers
•
Sound dampening foam
•
Model 97 Damper
7" round
•
28 GA galvanized steel
•
Aluminum louvers
•
Model 421 Damper
10" round
•
24 GA galvanized
•
steel with aluminum
louvers
Broan-NuTone LLC Hartford, Wisconsin
www.broan.com www.nutone.com 800-558-1711
Broan-NuTone Canada Mississauga, Ontario
www.broan.ca 877-896-1119
Model 438 Damper
8" round
•
24 GA galvanized
•
steel with aluminum
louvers
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