DAYTON Damper Backdrafts
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DAYTON Damper Backdrafts


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DAYTON 4HX72A
DAYTON 5NKN5B
DAYTON 5NKN6C
DAYTON 4HX74D
DAYTON 4HX76E
DAYTON 4HX73F
DAYTON 4HX75G
DAYTON 4HX77H
StyleModelFlange WidthFrame MaterialMaterialMax. VelocityPrice (ex. VAT)
A
4HX72		1 1/2"Aluminum , Steel16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm€55.50
B
5NKN5		1.5"-16-gauge Extruded Aluminum Frame, Galvanized Steel Tie Rods and Stainless Steel Hardware2250 fpm€151.49
C
5NKN6		1.5"-16-gauge Extruded Aluminum Frame, Galvanized Steel Tie Rods and Stainless Steel Hardware2250 fpm€194.99
B
5NKN4		1.5"-16-gauge Extruded Aluminum Frame, Galvanized Steel Tie Rods and Stainless Steel Hardware2250 fpm€125.51
D
4HX74		1.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm€82.73
E
4HX76		1.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm€98.51
F
4HX73		1.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm€75.64
G
4HX75		1.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm€93.65
H
4HX77		1.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm€103.67

Damper Backdrafts

Dayton damper backdrafts are suitable for use in ductwork, roof curbs or wall collars when using a fan or power roof ventilator. The blades of these dampers are provided with a felt seal on the leading edge for superior protection from the weather and are spring supported to permit blades to open comfortably. Choose from a range of these damper backdrafts, available in 1.375 and 1.5-inch widths.

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