20x25x4-TruFilter
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BNX manufactures the highest grade 20x25x4 MERV 13 air filters and does so in the United States. Available in MERV 13, MERV 11, and MERV 8
BNX manufactures the highest grade 20x25x4 MERV 13 air filters and does so in the United States. Available in MERV 13, MERV 11, and MERV 8