Nephelometer O-Ring, Replacement Back Catalog number: 385-0115-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 375-0019-01 GilAir Plus Shoulder Bag/Carrying Pouch, soft side Price on request 360-0049-01 Manual, Gilibrator-2 Flow Monitoring Software Price on request 402103 Printer Paper, Thermal for Printer PN 801806, Gil Price on request