Hex Key, 2mm Back Catalog number: 380-0036-01-R 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 811-9927-01 Cyclone, BGI4L Replacement Grit Pot Price on request 800518 Low Flow Module, Blue, GilAir-3/GilAir-5 Constant Price on request