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 GH37SR-2 Housing, 37mm 2pc Solvent Res, 50/Box Price on request 811-0907-01-R Dock to PC, usb cable (w/inductor), for Com version dock only Price on request 911-9901-EU-R Single Unit Charger w/ Power Adapter, USB GilAir-3/5-Euro Cord (Replaces 401097-1 & 401225-1) Price on request