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Alpine SBFD30-100-244

30 Inch Wide Return Air Support Box and Plenum Kit With Filter Slot

(3 Reviews)
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This return air support box and plenum kit is for use with systems where the return air must come in underneath the furnace or air handler. The kit includes 8 feet of 24 inch by 8 inch sheet metal ductwork that can be custom trimmed to the correct height for most applications, and a support box that can hold a furnace or air handler up to 22 inches wide. The support box features an interior support bracket for maximum strength, and a 20 by 25 inch filter slot that can accommodate a one, four, or five inch thick media filter. This kit does not include a filter. Please  click here to see our recommended filter. For return air box only, please see the Snappy SBFD30 .

Filter Size
20 x 25 Inches
Support Box Dimensions
30W x 28D x 15H inches
Duct Size
8 x 24 inches
Use Media Filters of Thickness
1 / 4 / 5 inches
Duct Length
8 ft
Max Furnace or Air Handler Width
22 inches
Height
15 Inches
HONEYWELL 20 X 25 X 4 INCH REPLACEMENT FILTERS
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(2-Pack) Honeywell 20" x 25" x 4" Replacement Media Filter for Models F100F, F150E

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Honeywell FC200E1011
Honeywell FC200E1037 (1-Pack)

Honeywell 20" x 25" x 4" Replacement Media Filter for Model FC200E1037

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Honeywell FC200E Media
Honeywell FC200E1037 (2-Pack)

(2-Pack) Honeywell 20" x 25" x 4" Replacement Media Filter for Model FC200E1037

$67.99 Qty:
Honewell FC200 Multi-Pack
Honeywell FC200E1037 (6-Pack)

(6-Pack) Honeywell 20" x 25" x 4" Replacement Media Filter for Model FC200E1037

$194.99 Qty:
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