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 375-0019-01 GilAir Plus Shoulder Bag/Carrying Pouch, soft side Price on request TE-23 Teflon Bag, On-Off Valve (4.7L) Price on request 811-0905-01-R Inlet Filters, Replacement for GilAir Plus, Pack o Price on request