PleatPacks Part # PP-841 MERV 11 - Package of 6, Replacements for MODEL # RFFS 841 Reusable Filter Frame System. Assembled in Canada by FurnaceFilters.Ca
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GeneralAire 4541 / 4511 16x25x5 Reusable Filter Frame Kit - Includes Lifetime Reusable Frame MODEL # RFFS 841 and 6 Replacement Filters PART # PP-841 MERV 11. Made by FurnaceFilters.Ca
PleatPacks Part # PP-841 MERV 11 - Package of 10, Replacements for MODEL # RFFS 841 Reusable Filter Frame System. Assembled in Canada by FurnaceFilters.Ca
