Cassette, 37mm, 2 pc, 0.8µm Polycarbonate, 50/Box Back Catalog number: GC728PC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 385-0114-01 Zero Cap, Black Rubber for Nephelometer Price on request 800783-3 Diagnostic Panel with Stand, Hi/Lo (2-50cc, 20-200 Price on request 360-0181-01 Manual, Gilian 10i Price on request