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 GFPC4537 Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Price on request 360-0201-01 Operation Manual/Software CD for Deluxe Nephelomet Price on request 911-0601-NO-R Single Unit Charger w/ Power Adapter, USB, BDX-2- Price on request