Best 437 Specifications
ROOF CAPS
SPECIFICATION SHEET
Model 437
High-capacity
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design - up to 1200 CFM
24 GA. CRCQ steel, black electrically-bonded epoxy
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finish
Built-in spring-loaded backdraft damper and bird screen
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For use with High Performance blower system
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Model 634
24 GA. CRCQ steel,
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black electrically-bonded epoxy finish
Built-in backdraft damper and bird screen
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For 3¼" x 10" or up to 8" round duct
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Model 634M
Same as Model 634 except with 6" round duct collar
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Model 644
Same as Model 634 except .025 aluminum
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Natural finish
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Broan-NuTone Canada, Inc., 1140 Tristar Drive, Mississauga, Ontario, L5T 1H9 (1-888-882-7626)
Broan-NuTone LLC, 926 West State Street, Hartford, WI 53027 (1-800-637-1453)
NuTone, Inc., 4820 Red Bank Road, Cincinnati, OH 45227 (1-800-543-8687)
Model 636
24 GA. CRCQ steel,
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black electrically-bonded epoxy finish
Built-in backdraft damper and bird screen
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For 3" or 4" round duct
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Model 636AL
Same as Model 636 .025 - in Aluminum
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Natural finish
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Model 443 Flexible Roof Ducting Kit
Includes 8 ft. of 4", flexible, vinyl ducting, 4" diameter
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metal duct connector, 2 duct clamps, 4" to 3" reducer
and Model 636 Roof Cap
Model RVK1A Flexible Roof Ducting Kit
Includes 8 ft. of 4", flexible, 2-ply metallic laminate
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ducting, 4" diameter metal duct connector, 2 duct
clamps, 4" to 3" reducer and Model 636 Roof Cap
Duct conforms to UL181 Class 1 air connector
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requirements
Not recommended for dryer venting
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REFERENCE QTY. REMARKS Project
Location
Architect
Engineer
Contractor
Submitted by Date
50F 99041930N
Model 611
For flat roof installation
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.025 Aluminum - natural finish
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Built-in bird screen
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For up to 8" round duct
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Model 611CM
For curb mount installation
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Other features same as Model 611
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Model 612
For flat roof installation
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.025 Aluminum - natural finish
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Built-in bird screen
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For up to 12" round duct
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Broan-NuTone LLC, 926 West State Street, Hartford, WI 53027 (1-800-637-1453)
NuTone, Inc., 4820 Red Bank Road, Cincinnati, OH 45227 (1-800-543-8687)
Broan-NuTone Canada, Inc., 1140 Tristar Drive, Mississauga, Ontario, L5T 1H9 (1-888-882-7626)
Model 612CM
For curb mount installation
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Other features same as Model 612
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