Cassette, 25mm, Classic Style, PCM, 0.8µm, MCE, No Back Catalog number: GCS25080 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 360-0138-01 Operation Manual/Software CD for Nephelometer, TSP Price on request GCAOC50 Cassette, Air-O-Cell 50/Box Price on request 811-0913-01-R Outlet Fitting, Bag Fill Adapter Price on request