Damper, Roof Mount

  • Dayton
  • 21 In.H-W 4.5 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 21 in, Rough Opening Diameter 19 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 18 in, For Duct Shape Square, Free Area 1.9 sq ft, Overall Width 21 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 18 1/2 in

    graingerSKU: 4HX66, mscSKU: , zoro_no: G0293465, mongo_id: 65bbe89622d7a989a9903060

Web Price
$80.99 / each
Qty

Product Details

Not Applicable
Vertical
Aluminum Blade w/ Felt Seal
Aluminum
Parallel Blades
Felt
Flat Blade
Nylon
Gravity
2,000 fpm
Aluminum Blades, G-90 Galvanized Steel Frame, Nylon Bushings and Galvanized Steel Tie Rods., Stainless Steel Pivot Pins
No
United States
Backdraft
19 x 19
Static
18 in
Rear Flange
1 in
1 in
Square
Not Applicable
Not Applicable
2 in
19
Galvanized Steel
20 ga
1.9 sq ft
Not Applicable
Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation
2,000 fpm
2000 fpm
180 Degrees F
1 in wc
Horizontal
1
21 x 21
Not Applicable
21 in
4 1/2 in
21 x 21
21 in
1
Not Applicable
19 1/2 in
18 1/2 in x 19.5 in
18 1/2 in
Square
19.5 in
Not Applicable
Single Acting
Normally Closed
Roof Mount, Exhaust
4HX83, 4HX84, 4HX94, 4HX95, 4HZ48, 4HZ49, 4HZ52, 4HZ53, 4YC48, 4YC49, 4YC72-75

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