Fantech 12540 dbf 4xlt dryer booster kit with fg 4xl fan with wall mount indicator panel 233 23 fantech dblt 4w lint trap 4 duct 53 95 fantech fc 4 mounting clamps 4 duct 24 95 customers who viewed this item also viewed.
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This category consists of fantech s dryer booster kits w positive pressure switch and timed relay for long duct runs.
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The product is equipped with a pressure sensing switch that activates the fan once positive pressure is sensed in the duct line.
Fantech fr 110 inline centrifugal duct fan molded housing 4 fantech fg 4xl inline 4 centrifugal duct fan metal housing 170 cfm 120v.
According to dryer manufacturers and some local building codes duct booster fans should be added in the dryer duct run when the length of the duct exceeds 25 feet with no bends 20 feet with one bend or 15 feet with two bends.
The switch shuts the fan off when the pressure in the duct s normalized.