Filter, 47mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC447 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1004-02 PM-10 Impactor Kit, Replacement for Models 810-100 Price on request 200156 Luer Taper Adapter, each (See also kit 200156-6) Price on request 800266-1 Generator Cell/Sensor, Standard Flow, Gilibrator-2 Price on request