Filter, 25mm, 5.0µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC525 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800843 Carrying Case, Hard Side, Deluxe (18" x 13" x 7"), Price on request GFPC837 Filter, 37mm, 0.8µm, Polycarbonate, Plain White, 1 Price on request 385-0113-01 Filter Cap, Replacement for Nephelometer Price on request