Filter, Replacement, GilAir-3/GilAir-5/BDX II Back Catalog number: 201050 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended GCU37AE Cassette, 37mm 3pc w/ Type A/E Glass Fiber, 50/Box Price on request GH37SR-2 Housing, 37mm 2pc Solvent Res, 50/Box Price on request 783-0009-02-R Battery Pack, GilAir-5. UL, ATEX, NiMH Price on request