Filter, 25mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4525 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0504-01-R Single Unit Replacement Charger only, USB Gilibrat Price on request C-B100M BioVOC Disposable Cardboard Mouthpieces, pk 100 Price on request 800844-2-230 Gilibrator-2 Standard Flow Diagnostic Kit, 230V, E Price on request