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LIGHT COMMERCIAL ACCESSORIES
IN-LINE ADAPTERS
Model 961L
• For L100/L150
Series
• Galvanized steel
• 6" round duct intake
Model 981L
• For L200/L250/L300
Series
• Galvanized steel
• 8" round duct intake
Model 982L
• For L400/L500/L700
Series
• Galvanized steel
• 4
1
⁄2" x 18
1
⁄2"
duct intake
Model 983L
• For L900/L1500 Series
• Galvanized steel
• 8" x 12" duct intake
DUCT TRANSITIONS
Models 423 & T81212
• Galvanized steel
• 423: (4
1
⁄2" x 18
1
⁄2"
to 10" round)
• T81212:
(8" x 12" to
12" round)
VIBRATION
DAMPENING HANGERS
Model V104 (not shown)
• For Model L2000L
• Heavy gauge steel construction
• Neoprene vibration dampening
cushion
• Maximum load 75 lbs (each)
• For
3
⁄8" diameter threaded
rod (available separately from
others)
• Set of four required for each
ventilator
METAL GRILLE KIT
Model MG1
• For L100/150/200/
250/300 Series
• White enamel
painted steel
• Mounting screws
included
ROOF CAPS
Model 437
• High-capacity
design up to
1200 CFM
• Built-in bird screen
• Steel housing, black
electrically bonded epoxy
finish
Model 611
• For flat roof
installation
• Aluminum natural finish
• For up to 8" round duct
Model 611CM
• For curb mount
installation
• Other features
same as Model 611
Model 612
• For flat roof installation
• Aluminum natural finish
• For up to 12" round duct
Model 612CM
• For curb mount installation
• Other features same as
Model 612
Model 634
• For 3
1
⁄4" x 10"
or up to 8"
round duct
• Built-in backdraft
damper and bird screen
• Steel housing, black
electrically bonded epoxy
finish
Model 634M
• Same as Model 634, except
for 6" round duct
Model 644
• Same as Model 634, except
aluminum natural finish
GREASE FILTERS
Models LAF1 & LAF2
• Aluminum mesh filter
traps grease and
protects motor
• Dishwasher safe
• LAF1 (12" x 12") for
L100/150/200/250/300 Series
• LAF1 for use with metal grilles
• LAF2 (12" x 21
1
⁄4")
for L400/500 Series
WALL CAPS
Model 441
• For 10" round duct
• Steel with
aluminum louvers
Model 613
• For 12" round duct
• Built-in backdraft
damper and
bird screen
• Aluminum natural finish
Model 641
• Same as Model 613,
except for 6" round duct
Model 643
• For 8" round duct
• Built-in backdraft
damper
• Aluminum natural finish
Model 843BL
• For 6" round duct
• Built-in backdraft
damper and
bird screen
• Black finish
Model 843 BL
RADIATION DAMPERS
When excessive heat is
detected, the breakaway fusible
link triggers the closing of the
radiation damper’s fire resistant
screen to prevent smoke and
fire from traveling through
ductwork.
Features
• 165° fusible link
• Galvanized
steel frame
• Stainless steel
negator-type
closure spring
High Capacity Models
RD1, RD2, RD3
(not shown)
• UL rated 3-hour ceiling
radiation dampers
• High temperature, non-
asbestos, reinforced fiber
thermal fabric
• RD1 (12
1
⁄2" x 12
1
⁄2") for
L100/150/200/250/300
Series
• RD2 (21
3
⁄4" x 12
1
⁄2")
for L400/500/700 Series
• RD3 (22
1
⁄4" x 18
1
⁄4")
for L900/1500 Series
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