Cassette, 37mm, 2 pc, 0.8µm Polycarbonate, 50/Box Back Catalog number: GC728PC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 201050 Filter, Replacement, GilAir-3/GilAir-5/BDX II Price on request 385-0113-01 Filter Cap, Replacement for Nephelometer Price on request 910-1301-EU Gilian 800i,Starter Kit, EU Cord Price on request