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Fantech Silencers For Round Ducting - Reduces noise in rigid duct

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

Model	Ų Duct*	Outside Ų	Length	Sound Data (Suppresion dB Frequency Bands Hz)
Model	Ų Duct*	Outside Ų	Length	125	250	500	1000	2000	4000	8000
LD 4	4"	8"	23 -5/8"	8	14	26	34	41	45	25
LD 5	5"	9"	23 -5/8"	6	12	22	28	37	38	22
LD 6	6"	10 -1/4"	23 -5/8"	5	10	18	23	33	30	19
LD 8	8"	12 -1/2"	23 -5/8"	4	9	17	22	29	25	18
LD 10	10"	14"	35 -1/2"	6	11	21	27	39	25	19
LD 12	12"	17 -3/4"	35 -1/2"	5	9	18	23	32	20	18
LD 16	16"	25"	35 -1/2"	5	8	11	23	19	17	15