Pricing mentioned is for a PR. Requires a minimum buy of 1 PR. 7000/9000 Series Combo Stacked Oganic Vapor Cartridges, Gray/Fuchsia, 30 Pair; Hazmat=False; Features=Both filter and cartridge are replaceable;Pre-assembled unit is easy to disassemble;Suitable for petrochemical, construction, transportation and chemical manufacturing; TestingAndApprovals=NIOSH approved; StandardPack=1PR; Color=Gray/Fuchsia; Filtration Grade=P100; For Model=Moldex 7000 and 9000 Series; Resistance=Organic Vapor; Type=Combination Cartridge/Filter; Usage=Chemical Manufacturing, Construction, Petrochemical, Transportation; Used With=Moldex 7000 and 9000 Series;