Housing, 37mm 2pc Solvent Res, 50/Box Back Catalog number: GH37SR-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 360-0138-01 Operation Manual/Software CD for Nephelometer, TSP Price on request 800320-1 Air Boss & Restrictor Kit, GilAir-3/GilAir-5 and B Price on request 700721 Printer only, Gilibrator-2 Price on request