Return Air Filter Bases

9 item(s)

- Return Air Filter Bases
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220300
14x25 4IN HIGH Filter Bases – Upflow or Horizontal with Hinged Door (Gas Furnace)
- Return Air Filter Bases
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220305
16x25 4IN HIGH Filter Bases – Upflow or Horizontal with Hinged Door (Gas Furnace)
- Return Air Filter Bases
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220310
20x25 4IN HIGH Filter Bases – Upflow or Horizontal with Hinged Door (Gas Furnace)
- Return Air Filter Bases
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220320
14x20 4IN HIGH Filter Bases – Upflow or Horizontal with Hinged Door (Electric Air Handler)
- Return Air Filter Bases
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220322
16x20 4IN HIGH Filter Bases – Upflow or Horizontal with Hinged Door (Electric Air Handler)
- Return Air Filter Bases
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220325
20x20 4IN HIGH Filter Bases – Upflow or Horizontal with Hinged Door (Electric Air Handler)
- Return Air Filter Bases
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220330
20x25 4IN HIGH Filter Bases – Upflow or Horizontal with Hinged Door (Electric Air Handler)
12x12 FRESH AIR FILTER BOX DB TOP - Return Air Filter Bases
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881798
12x12 FRESH AIR FILTER BOX DUCT BOARD TOP
12x12 FILTER BOX FOR FRESH AIR SOLID - Return Air Filter Bases
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881799
12x12x7 FILTER BOX FOR FRESH AIR