Filter, 37mm, 0.8µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC837 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-0902-02-R Data Logging, Bluetooth, Pump Only (No Dock) Price on request 375-0008-01 Protective Rubber Boot for Nephelometer Price on request 298-0013-01 Gilian 800i/5000/10i/12 Single Charger, 120V/240V, Price on request