DUE TO A SURGE AND A LABOR SHORTAGE LEAD TIME IS 3-4 WEEKS
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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 FV4Lasts 3 month or more 21 1/2 x 23 1/2 x 1