Housing, 37mm 2pc Opaque, 50/Box Back Catalog number: GH37-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0012-01 Gilian 800i/5000/10i/12 Replacement filter, pkg 10 Price on request 783-0012-01-R Battery Pack NiMH Rechargeable Price on request GC7245PC Cassette, 37mm, 2 pc, 0.4µm Polycarbonate, 50/Box Price on request