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Tier1 Replacement for American Standard 21x235x5 Merv 13 BAYFTAH23M Air Filter 2 Pack

Product Description :
Upgraded media rated at MERV 13 to capture 90 of particles 1 microns or smaller in size
Replacement for American Standard BAYFTAH23M and FLR06073
Up to twenty times more effective than ordinary fiberglass filters
This product is listed and rated by Underwriters Laboratories as UL Class 2