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 811-9929-01 Inhalable Dust Sampler, GSP-3.5 Conical Style (100 Price on request 800844-2-230 Gilibrator-2 Standard Flow Diagnostic Kit, 230V, E Price on request 380-0036-01-R Hex Key, 2mm Price on request