Filter, Tissue Quartz, (99.90% retention of 0.3µm Back Catalog number: GF37TQ Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 911-0502-NO-R Single Unit Charger w/ Power Adapter, USB Gilibrat Price on request SC-4 Tedlar Bag (3L) Price on request 811-1710-01-R Gilibrator 3, High Flow Dry Cell (Flow Range 1 - 3 Price on request