Cartridges and filters are Series 7000 and 9000 compatible and are sold by the pair.
• NIOSH certified.
• Required for each Pre-Filter.
• Please read reference documents below for ordering instructions.
Please Note: This item works with pre-filter item number DH1702, and snaps onto any of the Moldex® cartridges. This item will not snap on directly to Series 7000 or 9000 masks.