Duct Supplies

Iris Dampers	Backdraft Dampers	Lint Trap	Sheet Metal
Roof Curbs	Silencers for Round Duct	Round Flexible Duct	Clamps for Circular Duct
Mounting Clamps	Inlet Guards	Elbows

Iris Dampers

IR
Iris dampers for quiet, precise balancing of ventilation systems. Dampers include calibrated airflow measuring device.
UPC #12010

IR Series Dimensions

Model	UPC #	A*	B	C
IR 4	63040	4	6 1/2	2 1/4
IR 5	63050	5	8 1/4	2 1/2
IR 6	63060	6	9	2
IR 8	63080	8	11 1/4	2 1/4
IR 10	63100	10	13	2 3/4
IR 12	63120	12	16	2 3/8
IR16	63160	16	22	3 1/4
IR 20	63200	19 3/4	25 3/8	2 3/8
IR 25	63205	24 3/4	32	2 3/8

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

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Backdraft Dampers

RSK
Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades. Spring loaded for positive closure.

RSK Series Dimensions

Model	UPC #	A*	B
RSK 4	69040	4	3 1/4
RSK 5	69050	5	3 1/8
RSK 6	69060	6	3 1/8
RSK 8	69080	8	3 1/8
RSK 10	69100	10	3
RSK 12	69120	12	3
RSK 14	69140	14	6 3/8
RSK 16	69160	16	6 3/8

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

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Lint Trap for Dryer Boosting

DBLT 4
Paintable galvanized metal lint trap for dryer boosting applications. Use when duct length between dryer and booster fan is less than 15 feet. Fits 4-inch duct. Features pull out dorr with view window, removable lint filter for easy cleaning and 1/2″ flange for flush mount installation.

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Sheet Metal Adapters

FY
“Y” adapter for circular duct. Constructed of galvanized sheet metal.

FY Series Dimensions

Model	UPC #	A*	B*	C*	D	E
FY 4	64040	4	4	4	10 1/2	12 1/2
FY 5	64050	5	5	5	11	14
FY 6	64060	6	6	6	12 1/2	13 1/2
FY 86	64806	6	6	8	13	16
FY 8	64080	8	8	8	10	14
FY 810	64810	8	8	10	10 1/2	16 1/2

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

CKR
Increaser or reducer for circular duct. Constructed of galvanized sheet metal.

CKR Series Dimensions

Model	UPC #	A*	B*	C	D
CKR 54	65054	5	4	7 1/8	3 1/4
CKR 64	65064	6	4	8	4 1/2
CKR 86	65086	8	6	7 1/8	3 1/4

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Roof Curbs

WI/CI
Prefabricated roof curbs reduce installation time by assuring compatibility of the fan and curb. Curbs feature a welded 18 gauge galvanized steel construction, 3-inch cant, insulation and wooden nailing rail. Standard height is 8-inches.

WI/CI Series Dimensions

Model	UPC #	A	Fans
WI 1408	42148	15	RC 6
CI 18Q08	42188	18 1/2	RC 8XL RC 10XL

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Silencers for Round Duct

LD
Galvanized steel silencer for use in kitchen range hood ventilation and other applications where noise is a concern. A Fantech silencer can typically reduce the “perceived” sound level of the kitchen ventilation system by more than 50%. Units feature rubber seal on inlet and outlet.

LD Series Dimensions

Model	ø Duct†	Outside ø	Length
LD 4	4	8	23 5/8
LD 5	5	9	23 5/8
LD 6	6	10 1/4	23 5/8
LD 8	8	12 1/2	23 5/8
LD 10	10	14	35 1/2
LD 12	12	17 3/4	35 1/2
LD 16	16	25	35 1/2

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

LD Series Sound Performance

Model	125	250	500	1000	2000	4000	8000
LD 4	8	14	26	34	41	45	25
LD 5	6	12	22	28	37	38	22
LD 6	5	10	18	23	33	30	19
LD 8	4	9	17	22	29	25	18
LD 10	6	11	21	27	39	25	19
LD 12	5	9	18	23	32	20	18
LD 16	5	8	11	23	19	17	15

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Round Flexible Duct

FIDT
Flexible round insulated duct. Available in 25-foot lengths. UL listed.

FIDT Series Dimensions

Model	UPC #	Ø Duct
FIDT 4	59040	4
FIDT 5	59050	5
FIDT 6	59060	6
FIDT 8	59080	8
FIDT 10	59100	10

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

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Clamps for Circular Duct

CB
Plastic duct clamps. For use with flexible duct, easy to install locking slide clamps.

CB Series Dimensions

Model	UPC #	Ø Duct
CB 34	51041	4
CB 56	51051	5-6
CB 810	51081	8-10

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

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Mounting Clamps

FC
Stabilizing mounting clamps. Two inch wide galvanized steel bands lined with neoprene. Can be used for suspended installation of fan. For use with rigid duct work (sold in pairs).
FC12-315 connector kit for LD12 or other European 315mm duct.

FC Series Dimensions

Model	UPC #	A
FC 4	51040	4
FC 5	51050	5
FC 6	51060	6
FC 8	51080	8
FC 10	51100	10
FC 12	51120	12
FC 12-315	51125	12 3/8

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

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Inlet Guards

IG
Wire ring inlet guards used to prevent foreign objects from entering duct line. Zinc chromate plated steel.

IG Series Dimensions

Model	UPC #	Ø Duct
IG 4	75040	4
IG 5	75050	5
IG 6	75060	6
IG 8	75080	8
IG 10	75100	10
IG 12	75120	12

Dimensional information is in inches.
† Duct connections are 1/8" smaller than duct size.

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Elbows

FEL 4
Heavy-duty plastic 90º mounting collar/elbow for use in 2×4 stud walls. Use with 4-inch duct. With half-inch drywall lip already set, just nail in place and connect duct. Low depth profile makes this elbow the perfect solution for sidewall ventilation within a wall partition.
UPC #64495

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