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 360-0138-01 Operation Manual/Software CD for Nephelometer, TSP Price on request 910-1601-NO Gilian 12 Starter Kit, No Cord Price on request GCU37080MW-2 Cassette, 37mm 2pc 0.8µm, MCE Matched (50µg), 50/B Price on request