Cassette, 37mm, 2 pc, 0.4µm Polycarbonate, 50/Box Back Catalog number: GC7245PC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 801000-1 Power Module, 120V/230V/DC, without plug (used wit Price on request 911-0501-NO-R Single Unit Charger w/ Power Adapter, USB Gilibrat Price on request 811-1004-01 PM-2.5 Impactor Kit, Replacement for Models 810-10 Price on request