Filter, 25mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4525 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 GC7245PC Cassette, 37mm, 2 pc, 0.4µm Polycarbonate, 50/Box Price on request GCU25MV Cassette, 25mm Micro Vac, ea Price on request