Versaflo TR-6320N Acid Gas/HEPA Cartridge for TR-600/800 PAPR, (1 Each)
The TR 6300FC filter cover is also used to hold the TR 6600 prefilter or TR 662 spark arrestor in place. NIOSH approval: SD/HC/CL/CD/HS/HE. Captures certain common acid gases. Sold by each.