Nephelometer O-Ring, Replacement Back Catalog number: 385-0115-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 360-0190-01 Manual, Gilian 12 Price on request SC-9 Tedlar Bag (45.0L) Price on request 202316 Gilibrator 2 Plate Mounting Price on request