Sheath Air Purge Flow Filter for Nephelometer Back Catalog number: 385-0112-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0902-EU-R GilAir-Plus Data Logging Single Starter Kit, Euro Price on request GF47500PVC Filter, PVC, 5.0µm 47mm, 100/Pack Price on request 811-0920-01 Replacement Valve Caps (Pack of 2) Price on request