Housing, 37mm, 3Pc, 50/Box Back Catalog number: GCO37050 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 385-0112-01 Sheath Air Purge Flow Filter for Nephelometer Price on request 800885-171-2305 GilAir-5 RC Pump, 5-Pack with Universal 5-Unit Cha Price on request 801000-3 Power Module, 120V/230V/DC, with 230V Euro Cord ( Price on request