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 GFPC837 Filter, 37mm, 0.8µm, Polycarbonate, Plain White, 1 Price on request 811-9918-02 Go-Cal AC Adapter NEMA, 100-240V Price on request 400509 Impinger Special Midget, 2-pc., Glass, Teflon slee Price on request