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 811-9943-01-R Cable, USB-A to USB-B (6 ft) Price on request 811-1706-01-R Gilibrator 3, Hard Shell Carry Case Only Price on request TE-27 Teflon Bag, Septum Valve (4.7L) Price on request