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 800267-1 Generator Cell/Sensor, Low Flow, Gilibrator-2 Price on request 800843 Carrying Case, Hard Side, Deluxe (18" x 13" x 7"), Price on request C-BIO02-10 BioVOC-2 Breath Sampler, pk 10 Price on request