Centrifugal fans are much stronger than other types of fans. They will push air through long duct runs with little pressure (or cfm) loss and are much, much quieter. EcoPlus fans are ...

Centrifugal fans are much stronger than other types of fans. They will push air through long duct runs with little pressure (or cfm) loss and are much, much quieter. EcoPlus fans are ...

Centrifugal fans are much stronger than other types of fans. They will push air through long duct runs with little pressure (or cfm) loss and are much, much quieter. EcoPlus fans are ...

Centrifugal fans are much stronger than other types of fans. They will push air through long duct runs with little pressure (or cfm) loss and are much, much quieter. EcoPlus fans are ...

These centrifugal fans are much stronger than other types of fans. They will push air through long duct runs with little pressure (or cfm) loss and are much, much quieter. They are perfect ...

These centrifugal fans are much stronger than other types of fans. They will push air through long duct runs with little pressure (or cfm) loss and are much, much quieter. They are perfect ...

These centrifugal fans are much stronger than other types of fans. They will push air through long duct runs with little pressure (or cfm) loss and are much, much quieter. They are perfect ...

These normally closed dampers will open when the power is turned on, allowing air to pass. When the power is turned off, the dampers will close. They are most frequently used on the intake port of

These normally closed dampers will open when the power is turned on, allowing air to pass. When the power is turned off, the dampers will close. They are most frequently used on the intake port of

These normally closed dampers will open when the power is turned on, allowing air to pass. When the power is turned off, the dampers will close. They are most frequently used on the intake port of

These normally closed dampers will open when the power is turned on, allowing air to pass. When the power is turned off, the dampers will close. They are most frequently used on the intake port of

Opens when air blows through. Prevents backdrafts. Connects to all 4 inch ducting. Pictured with flexible ducting (not included; comes with short piece of straight ducting/mounting collar).

DFS5
Pounds of carbon: 33
Outside dimension: 14.96"
Length: 19.86"
CFM rating: 390-550
Flange size: 8"

GENERAL HYDROPONICS CARBON ...

DFS6
Pounds of carbon: 49.6
Outside dimension: 14.96"
Length: 29.52"
CFM rating: 550-720
Flange size: 10"

GENERAL HYDROPONICS CARBON ...

DFS7
Pounds of carbon: 66.1
Outside dimension: 14.96"
Length: 39.37"
CFM rating: 850-1025
Flange size: 12"

GENERAL HYDROPONICS ...

DFS8
Pounds of carbon: 82.7
Outside dimension: 14.96"
Length: 49.21"
CFM rating: 1200-1350
Flange size: 12"

GENERAL HYDROPONICS ...