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Filter Shipping carries Aprilaire's new style upgrade kits for converting your 2200 and 2400 air cleaner filters. These will also fit the Space-Gard 2200 and 2400 unit filters.

Aprilaire Expandable Upgrade Kits

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Aprilaire 1213 Expandable Upgrade Kit Aprilaire 1413 Expandable Upgrade Kit
Aprilaire1213
Upgrade Kit
Nominal Expanded Size: 20" x 25" x 4"
Exact Collapsed Size: 26" x 4"
Filter Rating: MERV 13
Expected Duration: 6 to 12 months
Allergen Grade: Advanced
Aprilaire 1413
Upgrade Kit
Nominal Expanded Size: 16" x 27" x 4"
Exact Collapsed Size: 28" x 4"
Filter Rating: MERV 13
Expected Duration: 6 to 12 months
Allergen Grade: Advanced