Filter, 47mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC447 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0303-01-R Single Unit Replacement Charger only, USB, LFS-11 Price on request GCU37500PVC Cassette, 37mm, 3pc, 5.0µm PVC, 50/Box Price on request 385-0114-01 Zero Cap, Black Rubber for Nephelometer Price on request