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Pre-Filter Retainer
Accessories and Replacement parts
Used with 3M 501 Retainer for 3M Filter Series is used to keep the 3M 5N11 or the 3M 5P71 filters clasped firmly against the 6000 series
The 3M 774 prefilter retainer is suitable for use with 3M 7700 series series Single-Cartridge Facepiece Reusable Respirator