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 800844 Diagnostic Panel with Carrying Case (2-50cc, 20-200cc, 0.5-5LPM), Gilibrator-2 Price on request 201320-40 Valve, Replacement, GilAir-3/5, BDX-2 Price on request 201116 NAMEPLATE for Constant Flow, Low Flow Module 800518 Price on request