Cassette, 37mm, 3pc, 0.8µm MCE 50/Box Back Catalog number: GCU37080 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1004-01 PM-2.5 Impactor Kit, Replacement for Models 810-10 Price on request 401036 Sampling Mast, Aircon-2 Price on request 800884-171-2305 GilAir-5 RP Pump, 5-Pack with Universal 5-Unit Cha Price on request