Aprilaire 810 Replacement Air Filter, MERV 10, 20″ x 25″ x 4″ (2-Pack)
Model: 810
Product description
Aprilaire 810 fits common 20″ x 25″ air cleaners. MERV 10 Media Filter Replacement for Aprilaire, This filter can only be used AFTER UPGRADED to the Aprilaire 4897 Upgrade Kit Rails.
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