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| Best Seller  | DAYTON 3AZJ6 Roof Curb,Fixed,Nonvented,O.D 53 In Roof Curb, For Fan Base Size 54 1/2 in, Curb Height 12 in, Curb Inside Width 50 in, Curb Outside Width 53 in, Material Steel, Standards UL 705, For Use With 54 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... ... more
DAYTON 3AZJ6 Roof Curb,Fixed,Nonvented,O.D 53 In Roof Curb, For Fan Base Size 54 1/2 in, Curb Height 12 in, Curb Inside Width 50 in, Curb Outside Width 53 in, Material Steel, Standards UL 705, For Use With 54 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... | go to store |
 | DAYTON 3AZL2 Roof Curb Adapter,Curb Side Sq O D 34 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 29 1/2 in, For Curb Size 34 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 34 in, Fan Side Width 29 1/2 in, Finish Galvanized, Function... ... more
DAYTON 3AZL2 Roof Curb Adapter,Curb Side Sq O D 34 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 29 1/2 in, For Curb Size 34 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 34 in, Fan Side Width 29 1/2 in, Finish Galvanized, Function... | go to store |
| Best Seller  | DAYTON 3AZK1 Roof Curb Adapter,Curb Side Sq O D 17 In Roof Curb Adapter, Adapter Type Reducer, For Fan Base Size 18 1/2 in, For Curb Size 17 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 17 in, Fan Side Width 18 1/2 in, Finish Galvanized, Function... ... more
DAYTON 3AZK1 Roof Curb Adapter,Curb Side Sq O D 17 In Roof Curb Adapter, Adapter Type Reducer, For Fan Base Size 18 1/2 in, For Curb Size 17 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 17 in, Fan Side Width 18 1/2 in, Finish Galvanized, Function... | go to store |
 | DAYTON 3AZL1 Roof Curb Adapter,Curb Side Sq O D 30 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 25 1/2 in, For Curb Size 30 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 30 in, Fan Side Width 25 1/2 in, Finish Galvanized, Function... ... more
DAYTON 3AZL1 Roof Curb Adapter,Curb Side Sq O D 30 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 25 1/2 in, For Curb Size 30 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 30 in, Fan Side Width 25 1/2 in, Finish Galvanized, Function... | go to store |
 | DAYTON 3AZK3 Roof Curb Adapter,Curb Side Sq O D 20 In Roof Curb Adapter, Adapter Type Reducer, For Fan Base Size 21 1/2 in, For Curb Size 20 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 20 in, Fan Side Width 21 1/2 in, Finish Galvanized, Function... ... more
DAYTON 3AZK3 Roof Curb Adapter,Curb Side Sq O D 20 In Roof Curb Adapter, Adapter Type Reducer, For Fan Base Size 21 1/2 in, For Curb Size 20 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 20 in, Fan Side Width 21 1/2 in, Finish Galvanized, Function... | go to store |
 | DAYTON 3AZK9 Roof Curb Adapter,Curb Side Sq O D 26 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 21 1/2 in, For Curb Size 26 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 26 in, Fan Side Width 21 1/2 in, Finish Galvanized, Function... ... more
DAYTON 3AZK9 Roof Curb Adapter,Curb Side Sq O D 26 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 21 1/2 in, For Curb Size 26 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 26 in, Fan Side Width 21 1/2 in, Finish Galvanized, Function... | go to store |
 | DAYTON 3AZK8 Roof Curb Adapter,Curb Side Sq O D 21 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 18 1/2 in, For Curb Size 21 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 21 in, Fan Side Width 18 1/2 in, Finish Galvanized, Function... ... more
DAYTON 3AZK8 Roof Curb Adapter,Curb Side Sq O D 21 In Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 18 1/2 in, For Curb Size 21 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 21 in, Fan Side Width 18 1/2 in, Finish Galvanized, Function... | go to store |
 | DAYTON 3AZK2 Roof Curb Adapter,Curb Side Sq O D 18 In Roof Curb Adapter, Adapter Type Reducer, For Fan Base Size 21 1/2 in, For Curb Size 18 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 18 in, Fan Side Width 21 1/2 in, Finish Galvanized, Function... ... more
DAYTON 3AZK2 Roof Curb Adapter,Curb Side Sq O D 18 In Roof Curb Adapter, Adapter Type Reducer, For Fan Base Size 21 1/2 in, For Curb Size 18 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 18 in, Fan Side Width 21 1/2 in, Finish Galvanized, Function... | go to store |
 | DAYTON 3FLT5 Roof Curb,Fixed,Nonvented,O.D 23 In Roof Curb, For Fan Base Size 24 1/2 in, Curb Height 12 in, Curb Inside Width 20 in, Curb Outside Width 23 in, Material Steel, Standards UL 705, For Use With 24 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... ... more
DAYTON 3FLT5 Roof Curb,Fixed,Nonvented,O.D 23 In Roof Curb, For Fan Base Size 24 1/2 in, Curb Height 12 in, Curb Inside Width 20 in, Curb Outside Width 23 in, Material Steel, Standards UL 705, For Use With 24 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... | go to store |
 | DAYTON 3AZH9 Roof Curb,Fixed,Nonvented,O.D 34 1/2 In Roof Curb, For Fan Base Size 36 in, Curb Height 12 in, Curb Inside Width 31 1/2 in, Curb Outside Width 34 1/2 in, Material Steel, Standards UL 705, For Use With 36 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... ... more
DAYTON 3AZH9 Roof Curb,Fixed,Nonvented,O.D 34 1/2 In Roof Curb, For Fan Base Size 36 in, Curb Height 12 in, Curb Inside Width 31 1/2 in, Curb Outside Width 34 1/2 in, Material Steel, Standards UL 705, For Use With 36 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... | go to store |
 | DAYTON 5EFJ2 Roof Curb, Fixed, 12 In H, 15 1/2 In O D Roof Curb, For Fan Base Size 17 in, Curb Height 12 in, Curb Inside Width 12 1/2 in, Curb Outside Width 15 1/2 in, Material Steel, Standards UL 705, For Use With 17 in square base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... ... more
DAYTON 5EFJ2 Roof Curb, Fixed, 12 In H, 15 1/2 In O D Roof Curb, For Fan Base Size 17 in, Curb Height 12 in, Curb Inside Width 12 1/2 in, Curb Outside Width 15 1/2 in, Material Steel, Standards UL 705, For Use With 17 in square base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... | go to store |
 | DAYTON 3AZJ2 Roof Curb,Fixed,Nonvented,O.D 39 In Roof Curb, For Fan Base Size 40 1/2 in, Curb Height 12 in, Curb Inside Width 36 in, Curb Outside Width 39 in, Material Steel, Standards UL 705, For Use With 40 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... ... more
DAYTON 3AZJ2 Roof Curb,Fixed,Nonvented,O.D 39 In Roof Curb, For Fan Base Size 40 1/2 in, Curb Height 12 in, Curb Inside Width 36 in, Curb Outside Width 39 in, Material Steel, Standards UL 705, For Use With 40 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... | go to store |
 | DAYTON 3AZJ5 Roof Curb,Fixed,Nonvented,O.D 49 In Roof Curb, For Fan Base Size 50 1/2 in, Curb Height 12 in, Curb Inside Width 46 in, Curb Outside Width 49 in, Material Steel, Standards UL 705, For Use With 50 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... ... more
DAYTON 3AZJ5 Roof Curb,Fixed,Nonvented,O.D 49 In Roof Curb, For Fan Base Size 50 1/2 in, Curb Height 12 in, Curb Inside Width 46 in, Curb Outside Width 49 in, Material Steel, Standards UL 705, For Use With 50 1/2 in Square Base, Adjustability Fixed, Ventilation Type Nonventilated, Application General... | go to store |
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