Model SDS-NB

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SDS-NB Circular Silencers are ideal for reducing the transmission of sound from fan discharges, intakes, within ducts and/or between two spaces when static pressure loss is of concern. Unobstructed airflow passage assures a pressure loss only 8% greater than that of plain duct. SDS-NB Silencers are constructed with a 20GA galv. steel outer casing, a 22GA perforated galv. steel internal liner and annular spaces filled with organic glass fiber.

Items are manufactured to order and typically ship in two weeks.

FREE SHIPPING !!
 
MODEL Diameter Diameter + 8" Length
SDS-NB-4 4 12 24
SDS-NB-5 5 13 24
SDS-NB-6 6 14 24
SDS-NB-7 7 15 25
SDS-NB-8 8 16 28
SDS-NB-9 9 17 31
SDS-NB-10 10 18 34
SDS-NB-11 11 19 37
SDS-NB-12 12 20 40
SDS-NB-14 14 22 46
SDS-NB-16 16 24 52
SDS-NB-18 18 26 58
SDS-NB-20 20 28 64
SDS-NB-22 22 30 70
SDS-NB-24 24 32 76
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Note: Larger sizes are available, please contact factory for additional information.
Product SKU Price Order
SDS-NB-04 SDS-NB4x24
Regular Price: $407.62
On Sale For: $381.05
SDS-NB-05 SDS-NB5x24
Regular Price: $412.53
On Sale For: $385.65
SDS-NB-06 SDS-NB6x24
Regular Price: $417.44
On Sale For: $390.25
SDS-NB-07 SDS-NB7x25
Regular Price: $435.12
On Sale For: $406.75
SDS-NB-08 SDS-NB8x28
Regular Price: $455.75
On Sale For: $426.05
SDS-NB-09 SDS-NB9x31
Regular Price: $478.34
On Sale For: $447.15
SDS-NB-10 SDS-NB10x34
Regular Price: $501.95
On Sale For: $469.25
SDS-NB-12 SDS-NB12x40
Regular Price: $552.99
On Sale For: $516.95
SDS-NB-14 SDS-NB14x46
Regular Price: $695.41
On Sale For: $650.05
SDS-NB-16 SDS-NB16x52
Regular Price: $843.72
On Sale For: $788.71
SDS-NB-18 SDS-NB18x58
Regular Price: $1,017.57
On Sale For: $951.25
SDS-NB-20 SDS-NB20x64
Regular Price: $1,099.10
On Sale For: $1,027.45
SDS-NB-22 SDS-NB22x70
Regular Price: $1,167.85
On Sale For: $1,091.70
SDS-NB-24 SDS-NB24x76
Regular Price: $1,357.42
On Sale For: $1,268.95