Nephelometer O-Ring, Replacement Back Catalog number: 385-0115-01 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 800286 Bubble Generator, Standard Flow Cell, Gilibrator 2 Price on request GCO37050 Housing, 37mm, 3Pc, 50/Box Price on request