Filter, 25mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4525 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 297-0012-01 USB Communications Cable for Nephelometer Price on request 910-0207-02 GilAir-3 Program [ATEX], Starter Kit, 230V, Euro P Price on request 360-0162-01 Go-Cal Manual Price on request