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SDS-NB-04
SDS-NB4x24
26.00
Regular Price: $407.62
On Sale For: $381.05
SDS-NB-05
SDS-NB5x24
30.00
Regular Price: $412.53
On Sale For: $385.65
SDS-NB-06
SDS-NB6x24
33.00
Regular Price: $417.44
On Sale For: $390.25
SDS-NB-07
SDS-NB7x25
37.00
Regular Price: $435.12
On Sale For: $406.75
SDS-NB-08
SDS-NB8x28
45.00
Regular Price: $455.75
On Sale For: $426.05
SDS-NB-09
SDS-NB9x31
54.00
Regular Price: $478.34
On Sale For: $447.15
SDS-NB-10
SDS-NB10x34
64.00
Regular Price: $501.95
On Sale For: $469.25
SDS-NB-12
SDS-NB12x40
86.00
Regular Price: $552.99
On Sale For: $516.95
SDS-NB-14
SDS-NB14x46
110.00
Regular Price: $695.41
On Sale For: $650.05
SDS-NB-16
SDS-NB16x52
138.00
Regular Price: $843.72
On Sale For: $788.71
SDS-NB-18
SDS-NB18x58
169.00
Regular Price: $1,017.57
On Sale For: $951.25
SDS-NB-20
SDS-NB20x64
203.00
Regular Price: $1,099.10
On Sale For: $1,027.45
SDS-NB-22
SDS-NB22x70
240.00
Regular Price: $1,167.85
On Sale For: $1,091.70
SDS-NB-24
SDS-NB24x76
281.00
Regular Price: $1,357.42
On Sale For: $1,268.95
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.
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