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Downblast Centrifugal Roof Exhaust Fans

Downblast centrifugal roof exhaust fans are designed to exhaust air and fumes through ductwork that create higher static pressures.. They are called "downblast" fans because the direction of the exhausted air is directed downwards toward the roof. Their centrifugal design is good for pulling through ductwork with higher static pressures and are typically used in commercial and industrial settings, such as warehouses, factories, and office buildings. 

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SDB Centrifugal Roof Exhaust 20 inch 3254 CFM Belt Drive SDB20PH1S

Item #: SDB20PH1S
Blade Diameter
20"
CFM
3254
Voltage
120
Drive
Belt
View Details
Your Price: $1,448.61 / each ea
each
HAWKEYE - Downblast Exhauster 18.25 inch 3970 CFM Belt Drive

Item #: XSA180-DBT10200
Blade Diameter
18.25"
CFM
3970
Voltage
120
Drive
Belt
View Details
Your Price: $1,501.54 / each ea
each
SDB Centrifugal Roof Exhaust 20 inch 4006 CFM Belt Drive SDB20QH1S

Item #: SDB20QH1S
Blade Diameter
20"
CFM
4006
Voltage
120
Drive
Belt
View Details
Your Price: $1,511.58 / each ea
each
SDB Centrifugal Roof Exhaust 22 inch 4454 CFM Belt Drive SDB22PH1S

Item #: SDB22PH1S
Blade Diameter
22"
CFM
4454
Voltage
120
Drive
Belt
View Details
Your Price: $1,549.22 / each ea
each
SDB Centrifugal Roof Exhaust 20 inch 4506 CFM Belt Drive SDB20RH1S

Item #: SDB20RH1S
Blade Diameter
20"
CFM
4506
Voltage
120
Drive
Belt
View Details
Your Price: $1,590.69 / each ea
each
SDB Centrifugal Roof Exhaust 22 inch 5264 CFM Belt Drive SDB22QH1S

Item #: SDB22QH1S
Blade Diameter
22"
CFM
5264
Voltage
120
Drive
Belt
View Details
Your Price: $1,615.26 / each ea
each
SDB Centrifugal Roof Exhaust 18 inch 4590 CFM Belt Drive SDB18SH1S

Item #: SDB18SH1S
Blade Diameter
18"
CFM
4590
Voltage
120
Drive
Belt
View Details
Your Price: $1,629.09 / each ea
each
SDB Centrifugal Roof Exhaust 22 inch 5669 CFM Belt Drive SDB22RH1S

Item #: SDB22RH1S
Blade Diameter
22"
CFM
5669
Voltage
120
Drive
Belt
View Details
Your Price: $1,648.29 / each ea
each
HAWKEYE - Downblast Exhauster 24.50 inch 5808 CFM Belt Drive 3 Phase

Item #: XSA245-DBT30200M
Blade Diameter
24.5"
CFM
6480
Voltage
240 / 480
Drive
Belt
View Details
Your Price: $1,650.73 / each ea
each
HAWKEYE - Downblast Exhauster 24.50 inch 5325 CFM Belt Drive

Item #: XSA245-DBT10150
Blade Diameter
24.5"
CFM
5325
Voltage
120
Drive
Belt
View Details
Your Price: $1,658.99 / each ea
each
SDB Centrifugal Roof Exhaust 20 inch 5007 CFM Belt Drive SDB20SH1S

Item #: SDB20SH1S
Blade Diameter
20"
CFM
5007
Voltage
120
Drive
Belt
View Details
Your Price: $1,659.81 / each ea
each
HAWKEYE - Downblast Exhauster 24.50 inch 5808 CFM Belt Drive

Item #: XSA245-DBT10200
Blade Diameter
24.5"
CFM
5808
Voltage
120
Drive
Belt
View Details
Your Price: $1,684.97 / each ea
each
SDB Centrifugal Roof Exhaust 18 inch 5188 CFM Belt Drive SDB18TH1S

Item #: SDB18TH1S
Blade Diameter
18"
CFM
5188
Voltage
120
Drive
Belt
View Details
Your Price: $1,700.51 / each ea
each
FloAire Centrifugal Downblast Roof Exhaust Fan 18.75 inch 3750 CFM Variable Speed Direct Drive DR180H

Item #: DR180H
Blade Diameter
18.75"
CFM
3750
Voltage
208
Drive
Direct
View Details
Your Price: $1,705.67 / each ea
each
SDB Centrifugal Roof Exhaust 18 inch 5787 CFM Belt Drive SDB18VH1S

Item #: SDB18VH1S
Blade Diameter
18"
CFM
5787
Voltage
120
Drive
Belt
View Details
Your Price: $1,759.65 / each ea
each
SDB Centrifugal Roof Exhaust 22 inch 6478 CFM Belt Drive SDB22SH1S

Item #: SDB22SH1S
Blade Diameter
22"
CFM
6478
Voltage
120
Drive
Belt
View Details
Your Price: $1,765.79 / each ea
each
SDB Centrifugal Roof Exhaust 20 inch 5758 CFM Belt Drive SDB20TH1S

Item #: SDB20TH1S
Blade Diameter
20"
CFM
5758
Voltage
120
Drive
Belt
View Details
Your Price: $1,770.40 / each ea
each
HAWKEYE - Downblast Exhauster 24.50 inch 6480 CFM Belt Drive 3 Phase

Item #: XSA245-DBT30300M
Blade Diameter
24.5"
CFM
6480
Voltage
240 / 480
Drive
Belt
View Details
Your Price: $1,798.40 / each ea
each
FloAire Centrifugal Downblast Roof Exhaust Fan 20.75 inch 5500 CFM 3 Phase Direct Drive DR200H

Item #: DR200H
Blade Diameter
20.75"
CFM
5500
Voltage
208
Drive
Direct
View Details
Your Price: $1,825.99 / each ea
each
SDB Centrifugal Roof Exhaust 20 inch 6259 CFM Belt Drive SDB20VH1S

Item #: SDB20VH1S
Blade Diameter
20"
CFM
6259
Voltage
120
Drive
Belt
View Details
Your Price: $1,829.54 / each ea
each
SDB Centrifugal Roof Exhaust 22 inch 7288 CFM Belt Drive SDB22TH1S

Item #: SDB22TH1S
Blade Diameter
22"
CFM
7288
Voltage
120
Drive
Belt
View Details
Your Price: $1,880.99 / each ea
each
SDB Centrifugal Roof Exhaust 22 inch 8098 CFM Belt Drive SDB22VH1S

Item #: SDB22VH1S
Blade Diameter
22"
CFM
8098
Voltage
120
Drive
Belt
View Details
Your Price: $1,941.66 / each ea
each
SDB Centrifugal Roof Exhaust 24 inch 4879 CFM Belt Drive 1 Phase SDB24PH1S

Item #: SDB24PH1S
Blade Diameter
24"
CFM
4879
Voltage
120
Drive
Belt
View Details
Your Price: $1,972.38 / each ea
each
SDB Centrifugal Roof Exhaust 24 inch 5576 CFM Belt Drive 1 Phase SDB24QH1S

Item #: SDB24QH1S
Blade Diameter
24"
CFM
5576
Voltage
120
Drive
Belt
View Details
Your Price: $2,013.09 / each ea
each
FloAire Centrifugal Downblast Roof Exhaust Fan 24 inch 8000 CFM 3 Phase Variable Speed Direct Drive DR240H

Item #: DR240H
Blade Diameter
24"
CFM
8000
Voltage
208
Drive
Direct
View Details
Your Price: $2,185.15 / each ea
each
SDB Centrifugal Roof Exhaust 30 inch 7098 CFM Belt Drive 1 Phase SDB30QH1S

Item #: SDB30QH1S
Blade Diameter
30"
CFM
7098
Voltage
120
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $2,589.63 / each ea
each
HAWKEYE - Downblast Exhauster w/ EC Motor 18.25 inch 3900 CFM Direct Drive

Item #: XSA180-DD100EC
Blade Diameter
18.25"
CFM
3900
Voltage
120 / 240
Drive
Direct
View Details
Your Price: $2,952.32 / each ea
each
SDB Centrifugal Roof Exhaust 30 inch 11339 CFM Belt Drive 1 Phase SDB30VH1S

Item #: SDB30VH1S
Blade Diameter
30"
CFM
11339
Voltage
120
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $3,010.23 / each ea
each
SDB Centrifugal Roof Exhaust 36 inch 13987 CFM Belt Drive 1 Phase SDB36VH1S

Item #: SDB36VH1S
Blade Diameter
36"
CFM
13987
Voltage
120
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $4,011.85 / each ea
each
SDB Centrifugal Roof Exhaust 42 inch 20064 CFM Belt Drive 3 Phase SDB42WH3S

Item #: SDB42WH3S
Blade Diameter
42"
CFM
20064
Voltage
208 / 240 / 480
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $4,792.44 / each ea
each
SDB Centrifugal Roof Exhaust 42 inch 23841 CFM Belt Drive 3 Phase SDB42XH3S

Item #: SDB42XH3S
Blade Diameter
42"
CFM
23841
Voltage
208 / 240 / 480
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $5,000.16 / each ea
each
SDB Centrifugal Roof Exhaust 42 inch 16051 CFM Belt Drive 1 Phase SDB42TH1S

Item #: SDB42TH1S
Blade Diameter
42"
CFM
16051
Voltage
120 / 208 / 240
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $5,074.08 / each ea
each
SDB Centrifugal Roof Exhaust 42 inch 17940 CFM Belt Drive 1 Phase SDB42VH1S

Item #: SDB42VH1S
Blade Diameter
42"
CFM
17940
Voltage
120 / 208 / 240
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $5,077.78 / each ea
each
SDB Centrifugal Roof Exhaust 48 inch 21003 CFM Belt Drive 3 Phase SDB48WH3S

Item #: SDB48WH3S
Blade Diameter
48"
CFM
21003
Voltage
208 / 240 / 480
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $5,479.90 / each ea
each
SDB Centrifugal Roof Exhaust 48 inch 25041 CFM Belt Drive 3 Phase SDB48XH3S

Item #: SDB48XH3S
Blade Diameter
48"
CFM
25041
Voltage
208 / 240 / 480
Drive
Belt

Note: This item is built to order and non-returnable

View Details
Your Price: $5,637.34 / each ea
each
SDB Centrifugal Roof Exhaust 24 inch 5576 CFM Belt Drive 3 Phase SDB24QH3S

Item #: SDB24QH3S
Blade Diameter
24"
CFM
5576
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 24 inch 6422 CFM Belt Drive 3 Phase SDB24RH3S

Item #: SDB24RH3S
Blade Diameter
24"
CFM
6422
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 24 inch 7069 CFM Belt Drive 3 Phase SDB24SH3S

Item #: SDB24SH3S
Blade Diameter
24"
CFM
7069
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 24 inch 8164 CFM Belt Drive 3 Phase SDB24TH3S

Item #: SDB24TH3S
Blade Diameter
24"
CFM
8164
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 24 inch 8961 CFM Belt Drive 3 Phase SDB24VH3S

Item #: SDB24VH3S
Blade Diameter
24"
CFM
8961
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 30 inch 7098 CFM Belt Drive 3 Phase SDB30QH3S

Item #: SDB30QH3S
Blade Diameter
30"
CFM
7098
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 30 inch 8916 CFM Belt Drive 3 Phase SDB30SH3S

Item #: SDB30SH3S
Blade Diameter
30"
CFM
8916
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 30 inch 10214 CFM Belt Drive 3 Phase SDB30TH3S

Item #: SDB30TH3S
Blade Diameter
30"
CFM
10214
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 30 inch 11339 CFM 3 Phase SDB30VH3S

Item #: SDB30VH3S
Blade Diameter
30"
CFM
11339
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 30 inch 8050 CFM Belt Drive 3 Phase SDB30RH3S

Item #: SDB30RH3S
Blade Diameter
30"
CFM
8050
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 30 inch 12897 CFM Belt Drive 3 Phase SDB30WH3S

Item #: SDB30WH3S
Blade Diameter
30"
CFM
12897
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 36 inch 10134 CFM Belt Drive 3 Phase SDB36RH3S

Item #: SDB36RH3S
Blade Diameter
36"
CFM
10134
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
SDB Centrifugal Roof Exhaust 36 inch 10990 CFM Belt Drive 3 Phase SDB36SH3S

Item #: SDB36SH3S
Blade Diameter
36"
CFM
10990
Voltage
208 / 240 / 480
Drive
Belt
View Details
View Details to Configure for Price
View Details
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