When installed inside the filter cover of a TR-300 PAPR, the TR-3600 prefilter can extend the life of the HE filter by capturing large particles that would otherwise clog the HE filter. 1 pkg of 10 pres. 6 pkgs of 10 available at sale price.
This is a stock item, and is normally available for immediate shipment.
3M ID: 70-0715-6364-0