Housing, 37mm 2pc Opaque, 50/Box Back Catalog number: GH37-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GCO37050-2 Housing, 37mm, 2Pc, 50/Box Price on request 800143 Filter Cassette Holder Kit (required when sampling Price on request 800272-2 Gilibrator-2, Low Flow Kit, 230V, Euro Cord Price on request