Nephelometer O-Ring, Replacement Back Catalog number: 385-0115-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GFPC447 Filter, 47mm, 0.4µm, Polycarbonate, Plain White, 1 Price on request 360-0049-01 Manual, Gilibrator-2 Flow Monitoring Software Price on request GH37SR-2 Housing, 37mm 2pc Solvent Res, 50/Box Price on request