Honeywell TRN2121T1 - 21" x 21.5" x 5" MERV 10 Trane Perfect Fit Replacement Air Filter
Honeywell TRN2121T1 MERV 10 Air Filter. This product is a brand new genuine Honeywell filter.
Honeywell TRN2121T1 - 21" x 21.5" x 5" MERV 10 Pleated Filter
This filter is a brand new Honeywell TRN2121T1 air filter that replaces the BAYFTAH21M.
Honeywell recommends this filter be replaced every 12 months for maximum efficiency and effectiveness. Much of this depends on the condition of the environment it is servicing.
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For additional savings please see the multipack selections of the product that can be found above.