Nephelometer O-Ring, Replacement Back Catalog number: 385-0115-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF47500PVC Filter, PVC, 5.0µm 47mm, 100/Pack Price on request 811-9918-03 Go-Cal AC Adapter Euro, 100-240V Price on request KB-1 Kynar Bag 1.0L Price on request