Filter, Tissue Quartz, (99.90% retention of 0.3µm Back Catalog number: GF25TQ Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GCAOC10 Cassette, Air-O-Cell 10/Box Price on request 811-9909-01 Inhalable Dust Sampler (100 µm Particle Cut at 2L Price on request TE-21 Teflon Bag, On-Off Valve (1.2L) Price on request