Cyclone, FSP-2 Higgins-Dewell Style Cyclone Back Catalog number: 811-9930-01 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 385-0112-01 Sheath Air Purge Flow Filter for Nephelometer Price on request 611-0901-01-R Dual Manifold High Flow Splitter only, Bottom Access Price on request 780-0015-03-R Calibrator cable (TSI)-4146 and GoCal, for automatic cal option Price on request