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Day and Night Furnace Air Filter Replacement KFAFK0412XXL
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Day and Night Air Filter Day and Night Filter -Furnace Filter MERV 13, (21 1/2x23 1/2x1) KFAFK0312LRG

Day and Night Air Filter Replacement For:
KFAFK0412XXL, 317659-405

MERV 13 high efficiency Pleated air filter Replacement. Fits 018/024, FA4, FB4, FC4, FH4, FK4, and FV4

Lasts 3 month or more
21 1/2 x 23 1/2 x 1

ONLY: $25.69 each - FREE DELIVERY Plus SAVE Big When You Order More